| Instruments seldom seen in orchestras | 37 |
| Instruments similar to English horns | 36 |
| Instruments that are straddled when played | 42 |
| Instruments that may be made from monkeypod wood | 48 |
| Instruments that often have chord buttons | 41 |
| Instruments that usually have at least 18 strings | 49 |
| Instruments tuned to "My Dog Has Fleas" | 49 |
| Instruments used by the band Apocalyptica | 41 |
| Instruments used in orchestra tuning | 36 |
| Instruments with circular frames | 32 |
| Instruments with low learning curves | 36 |
| Instruments with sympathetic strings | 36 |
| Instumental Simon and Garfunkel jam | 35 |
| Insufferable, lovelorn and whiny, in slang | 42 |
| Insufficient oxygenation of the blood | 37 |
| Insufficiently filled, as a printed page | 40 |
| Insulation ingredient, for short | 32 |
| Insulin regulates the amount of it in the blood | 47 |
| Insult at the Miss America Pageant? | 35 |
| Insult or a "gorgeous" introduction | 45 |
| Insulted hurled at a boring Jerry Springer guest? | 49 |
| Insulting 2004 term for John Kerry | 34 |
| Insulting the queen, e.g.? (27->26) | 38 |
| Insurance "spokeslizard" | 34 |
| Insurance adjuster's concern | 32 |
| Insurance agent's calculation | 33 |
| Insurance annuity for a minister? | 33 |
| Insurance co. with a "spokesduck" | 43 |
| Insurance co. with a duck mascot | 32 |
| Insurance company headquartered in Rhode Island | 47 |
| Insurance company in the Fortune 500 | 36 |
| Insurance company named for a mountain | 38 |
| Insurance company on the Fortune 100 | 36 |
| Insurance company whose logo contains a duck | 44 |
| Insurance company with a "spokesduck" | 47 |
| Insurance company with a duck in its ads | 40 |
| Insurance company with a duck in its logo | 41 |
| Insurance company with a duck in its TV ads | 43 |
| Insurance company with a duck mascot | 36 |
| Insurance company with a lizard mascot | 38 |
| Insurance company with a spokesduck | 35 |
| Insurance company with atmosphere? | 34 |
| Insurance company with Snoopy on its blimp | 42 |
| Insurance company with TV ads featuring cavemen | 47 |
| Insurance company's calculation | 35 |
| Insurance firm known for its duck | 33 |
| Insurance firm that's just ducky? | 37 |
| Insurance for a tightrope walker? | 33 |
| Insurance for an identical twin? | 32 |
| Insurance giant that's just ducky? | 38 |
| Insurance giant with a duck in its ads | 38 |
| Insurance group name found on coins | 35 |
| Insurance Institute for Highway Safety concern | 46 |
| Insurance pro's designation: Abbr. | 38 |
| Insurance pro's title: Abbr. | 32 |
| Insurance provider based in Seattle | 35 |
| Insurer at One Lime Street, London | 34 |
| Insurer of Bob Dylan's vocal cords | 38 |
| Insurer of Dolly Parton's breasts | 37 |
| Insurer of Tina Turner's legs | 33 |
| INSURGENT'S PARKA IS GUNFIRE CASUALTY! | 42 |
| Insurrectionist Turner and others | 33 |
| Int'l carrier in "The Aviator" | 44 |
| Int'l Herald Tribune publisher | 34 |
| Int. group after the Baghdad Pact | 33 |
| Int.-bearing accounts, supposedly | 33 |
| Intake interruption while asleep? | 33 |
| Intangible barrier for marathoners | 34 |
| Integra or Legend's car make | 32 |
| Integral course of study, briefly? | 34 |
| Integration that exceeds the sum of its parts | 45 |
| Intel collector hidden in nine puzzle answers | 45 |
| Intel's Paul S. Otellini, e.g. | 34 |
| INTEL/AVON merger popular with silent film fans | 47 |
| Intellectual member of a family group? | 38 |
| Intelligence community technique | 32 |
| Intelligence explanation, perhaps (Part 1) | 42 |
| Intelligence explanation, perhaps (Part 2) | 42 |
| Intelligence explanation, perhaps (Part 3) | 42 |
| Intelligence explanation, perhaps (Part 4) | 42 |
| Intelligence grp. established by Truman | 39 |
| Intelligence or good looks, e.g. | 32 |
| Intelligent carnival game player? | 33 |
| Intelligent dog with a curly coat | 33 |
| Intelligent men find fault with falsehoods | 42 |
| Intelligent, creative sort, supposedly | 38 |
| Intelligently planned progresses | 32 |
| Intended result of corporate mergers | 36 |
| Intended user of a certain ruled pad | 36 |
| Intense attraction, with "the" | 40 |
| Intense feeling from eating sushi? | 34 |
| Intensifier after adjectives like big and weak | 46 |
| Intensifier for "seldom" | 34 |
| Intensifies (with "up") | 33 |
| Intensifies, with "up" | 32 |
| Intensify, with ''up'' | 38 |
| Intensifying, with "up" | 33 |
| Intent or knowledge of wrongdoing | 33 |
| Intention + a letter + really cold = ? | 38 |
| Intentional foul, in some sports | 32 |