| Part of an opera | 16 |
| Part of an open fireplace, often | 32 |
| Part of an Olympics chant | 25 |
| Part of an old-fashioned pinup | 30 |
| Part of an old-fashioned pin-up | 31 |
| Part of an old United Nations name | 34 |
| Part of an old TV catchphrase, also used by Ed McMahon | 54 |
| Part of an old TV | 17 |
| Part of an old toy telephone | 28 |
| Part of an old telephone | 24 |
| Part of an old sock, maybe | 26 |
| Part of an old Royal Navy ration | 32 |
| Part of an old punchline | 24 |
| Part of an old phone | 20 |
| Part of an old military alphabet | 32 |
| Part of an old inscription | 26 |
| Part of an old heating system | 29 |
| Part of an old Greek stage | 26 |
| Part of an old Greek fleet | 26 |
| Part of an old English Christmas feast | 38 |
| Part of an old comedy trio, with his brothers Harry and Jimmy | 61 |
| Part of an old boast | 20 |
| Part of an old block? | 21 |
| Part of an oil lamp | 19 |
| Part of an officer's uniform | 32 |
| Part of an office sched. | 24 |
| Part of an office phone no. | 27 |
| Part of an ode | 14 |
| Part of an octopus | 18 |
| Part of an octet | 16 |
| Part of an Oahu welcome | 23 |
| Part of an O. Henry title | 25 |
| Part of an O'Neill title | 28 |
| Part of an MC's moniker | 27 |
| Part of an M.O. | 15 |
| Part of an M.D.'s sched. | 28 |
| Part of an M.D.'s educ. | 27 |
| Part of an LPGA golfer's wardrobe, perhaps | 46 |
| Part of an LP | 13 |
| Part of an Ivy trio | 19 |
| Part of an IV | 13 |
| Part of an itinerary | 20 |
| Part of an itin. | 16 |
| Part of an island? | 18 |
| Part of an Ironman competition | 30 |
| Part of an Irish playwright's will? | 39 |
| Part of an Irish funeral, traditionally | 39 |
| Part of an invitation to an imbiber | 35 |
| Part of an invitation to a drinker (abbr.) | 42 |
| Part of an inventory | 20 |
| Part of an Inuit village | 24 |
| Part of an interview | 20 |
| Part of an interstate | 21 |
| Part of an Internet address | 27 |
| Part of an internal network | 27 |
| Part of an instrument measuring fluid pressure | 46 |
| Part of an insect's wing | 28 |
| Part of an inning | 17 |
| Part of an inheritance? | 23 |
| Part of an inheritance | 22 |
| Part of an informal buffet, perhaps | 35 |
| Part of an infamous description of the press | 44 |
| Part of an indictment | 21 |
| Part of an Indian landmark | 26 |
| Part of an inch | 15 |
| Part of an in-person dedication | 31 |
| Part of an impolite word? | 25 |
| Part of an immigrant's educ. | 32 |
| Part of an image, perhaps | 25 |
| Part of an ignitron | 19 |
| Part of an iconic Eden outfit | 29 |
| Part of an iceberg that's visible | 37 |
| Part of an iceberg | 18 |
| Part of an ice skater's shoe | 32 |
| Part of an ice skate | 20 |
| Part of an ice pack? | 20 |
| Part of an ice cream cone | 25 |
| Part of an iamb | 15 |
| Part of an I.R.S. return: Abbr. | 31 |
| Part of an i | 12 |
| Part of an hr. | 14 |
| Part of an HR employee's job | 32 |
| Part of an hourglass figure | 27 |
| Part of an eyelid | 17 |
| Part of an eyeball | 18 |
| Part of an extended name | 24 |
| Part of an extended family | 26 |
| Part of an expensive string | 27 |
| Part of an exec's wardrobe | 30 |
| Part of an exclusive circle | 27 |
| Part of an exchange | 19 |
| Part of an excavated skeleton? | 30 |
| Part of an ex-U.N. chief's name | 35 |
| Part of an Everly Brothers hit | 30 |
| Part of an even exchange | 24 |
| Part of an etiquette list, maybe | 32 |
| Part of an Ethiopian emperor's title | 40 |
| Part of an ete | 14 |
| Part of an estate's staff | 29 |
| Part of an estate | 17 |