| Improv music popularized by Ella Fitzgerald | 43 |
| It's nearly bisected by the Missouri R. | 43 |
| It's now called "Periodicals" | 43 |
| Increase the appeal of, with "up" | 43 |
| IdaHO's "Niagara of the West" | 43 |
| In billiards, what the English call English | 43 |
| It's often found under a Christmas tree | 43 |
| In other words, it comes in 100 tiny pieces | 43 |
| It's what all the world is, in a saying | 43 |
| Intimidate, in a way, with "down" | 43 |
| Immortal manager nicknamed for his hometown | 43 |
| Instrument bought at Sotheby's, perhaps | 43 |
| It speaks of "delicate pleasures" | 43 |
| It's down, in a Homestar Runner cartoon | 43 |
| Its extract is used in Worcestershire sauce | 43 |
| Isn't likely to win any culinary awards | 43 |
| It could be a heart up someone's sleeve | 43 |
| Impetus for a 1773 Boston "party" | 43 |
| Iron-___ (brand of nutritional supplements) | 43 |
| It's often said before "said" | 43 |
| Indie/electronica group formed in Edinburgh | 43 |
| It's too important to ignore, literally | 43 |
| It could be represented by an "X" | 43 |
| It's needed while watching a tearjerker | 43 |
| It's frequently under a star's name | 43 |
| It's supportive for those eating in bed | 43 |
| It's usually smaller than a city: Abbr. | 43 |
| In other words, it'll break in 24 hours | 43 |
| Its license plates depict the Delicate Arch | 43 |
| It'll tell you which way the wind blows | 43 |
| Instrument popular in Shakespeare's day | 43 |
| It's good for absolutely nothing [hunh] | 43 |
| It's almost always actually horseradish | 43 |
| Instantaneous web-based communication syst. | 43 |
| It precedes Yankee in the phonetic alphabet | 43 |
| It's often posted at a freeway entrance | 43 |
| It's wasted on the young, it's said | 43 |
| It's nice when checks have lots of them | 43 |
| Its members often get motel discounts: Abbr. | 44 |
| Irene ___, figure in Sherlock Holmes stories | 44 |
| It was about nothing, in a 17th-century play | 44 |
| Insurance company whose logo contains a duck | 44 |
| Increasingly touchy subject, as it increases | 44 |
| It might be shouted before "Fire!" | 44 |
| It's expired shortly after it's used | 44 |
| Instrument that's not seen and not heard | 44 |
| Its motto is "North to the future" | 44 |
| It has a red flag with a double-headed eagle | 44 |
| It bites, takes hops and may have a big head | 44 |
| Imogen's Fidele in "Cymbeline" | 44 |
| Its title means "Farewell to Thee" | 44 |
| It's labeled "option" on a Mac | 44 |
| It's "blowin' in the wind" | 44 |
| Imaginary boundary for the South Frigid Zone | 44 |
| Israel's "Hatikvah" and others | 44 |
| It's issued to several stations, briefly | 44 |
| Indian immigrant on "The Simpsons" | 44 |
| India.___ ("Little Things" singer) | 44 |
| It hangs around in some impressive buildings | 44 |
| It comes from the bottom of one's hearth | 44 |
| It's west of the International Date Line | 44 |
| If two silkworms raced they'd end in ___ | 44 |
| Irving Berlin's "Always," e.g. | 44 |
| It may be stolen in parks across the country | 44 |
| It is entirely dependent on flowers for food | 44 |
| It comes straight from the horse's mouth | 44 |
| Initiates withdrawals of defective products? | 44 |
| It's signed but has no amount written in | 44 |
| It often functions with the help of an organ | 44 |
| Its trill opens "Rhapsody in Blue" | 44 |
| It includes the brain and spinal cord: abbr. | 44 |
| It's needed for a spin at the laundromat | 44 |
| It means "strained" in drink names | 44 |
| It's played with mallets and wickets ... | 44 |
| I've Gotta ____ : Peter Pan song | 44 |
| Its motto was "Deo Vindice": Abbr. | 44 |
| Inits. for Lowe's or Home Depot shoppers | 44 |
| It may be used against you in a court of law | 44 |
| It may result from a long phone conversation | 44 |
| It's used when looking for the right key | 44 |
| Israel's first United Nations ambassador | 44 |
| Irving Bacheller's "__ Holden" | 44 |
| Its entrance was barred with a flaming sword | 44 |
| Ivy League sch. setting, more often than not | 44 |
| Ice cream brand that's "Grand" | 44 |
| Its first flight was from Geneva to Tel Aviv | 44 |
| Italian birthplace of a school of philosophy | 44 |
| Invisible-clothes wearer in an Andersen tale | 44 |
| Ibsen's "An ___ of the People" | 44 |
| In literature, the personification of purity | 44 |
| Iconic "Another Green World" Brian | 44 |
| Its troubles inspired the Sarbanes-Oxley Act | 44 |
| Irish singer with eight platinum U.S. albums | 44 |
| It's about 115 miles north of Pittsburgh | 44 |
| Irish river that shares its name with a bird | 44 |
| It may be seen briefly at the end of a list? | 44 |
| Investment firm with an asterisk in its name | 44 |
| It may come before ''after'' | 44 |
| It could get an innocent person into trouble | 44 |
| It's important to read it before signing | 44 |