| Object that is defragged | 24 |
| Object thrown in a pub | 22 |
| Object thrown in defeat | 23 |
| Object to find in Kakuro | 24 |
| Object used in some pranks | 26 |
| Object with six pockets | 23 |
| Objected to a bad call | 22 |
| Objection, in a courtroom | 25 |
| Objectionable in appearance | 27 |
| Objectionable, as a habit | 25 |
| Objective case of thou | 22 |
| Objective in musical chairs | 27 |
| Objective of a noted march | 26 |
| Objective of many a plug | 24 |
| Objective of some sports | 24 |
| Objectivism advocate Rand | 25 |
| Objectivism creator Rand | 24 |
| Objectivism figure Ayn | 22 |
| Objectivist philosopher Rand | 28 |
| Objectivist writer Rand | 23 |
| Objectivist's first name | 28 |
| Objector's beginning | 24 |
| Objects carrying magic spells | 29 |
| Objects from everyday life | 26 |
| Objects in a Poitier title | 26 |
| Objects in jewel cases | 22 |
| Objects in some Japanese art | 28 |
| Objects intuited but not seen | 29 |
| Objects made by humans | 22 |
| Objects of a 2005 merger | 24 |
| Objects of a seasonal hunt | 26 |
| Objects of core workouts | 24 |
| Objects of extended quests | 26 |
| Objects of hand wringings? | 26 |
| Objects of hand-holding | 23 |
| Objects of Homer's desire | 29 |
| Objects of infatuation | 22 |
| Objects of much ribbing | 23 |
| Objects of poolside ogling? | 27 |
| Objects of prepositions | 23 |
| Objects of rhinoplasty | 22 |
| Objects of some alterations | 27 |
| Objects of some big sales | 25 |
| Objects on many desktops | 24 |
| Objects thrown in defeat | 24 |
| Objects to, chicken-style | 25 |
| Oblast between Kursk and Tula | 29 |
| Oblast bordering Kazakhstan | 27 |
| Oblast capital SSW of Moscow | 28 |
| Oblast in southwest Russia | 26 |
| Oblast in the Pripet Marshes | 28 |
| Obligated to repay a loan | 25 |
| Obligated, so to speak | 22 |
| Obligation at some churches | 27 |
| Obligatory joke response | 24 |
| Obliged out of integrity | 24 |
| Obliged to pay actor Leonard? | 29 |
| Obliging spouse's reply | 27 |
| Oblique surface in carpentry | 28 |
| Obliquely driven, as nails | 26 |
| Obliterate from memory | 22 |
| Obliterating or erasing | 23 |
| Oblivious beneficiaries | 23 |
| Oblivious to danger, maybe | 26 |
| Oblong mechanical pieces | 24 |
| Oblong yellowish fruit | 22 |
| Obnoxious car passenger | 23 |
| Obnoxious Sevendust song | 24 |
| Obnoxious sort, in slang | 24 |
| Obnoxious vanity plate | 22 |
| Obnoxious young Civic driver? | 29 |
| Obnoxious young'un | 22 |
| Obnoxiously proper one | 22 |
| Obnoxiously proper person | 25 |
| Obnoxiously proper sort | 23 |
| Obnoxiously proper types | 24 |
| Oboe's air channel | 22 |
| Oboe's predecessor | 22 |
| Oboes and clarinets, e.g. | 25 |
| Obote's overthrower | 23 |
| Obscenity obscurer, sometimes | 29 |
| Obscenity watcher: Abbr. | 24 |
| Obscurer of trees, for some | 27 |
| Obscures, with "up" | 29 |
| Obsequious Dickens character | 28 |
| Observance before Easter | 24 |
| Observance of correctness | 25 |
| Observance of moral law | 23 |
| Observance through Oct. | 23 |
| Observances of the law | 22 |
| Observant Mormons, e.g. | 23 |
| Observant Muslim, at times | 26 |
| Observation about Las Vegas? | 28 |
| Observation by Davidson | 23 |
| Observation of cardinals, say | 29 |
| Observation on the ad era | 25 |
| Observation re candidates? | 26 |
| Observation spot for tourists | 29 |
| Observation, final part | 23 |
| Observatory explosions | 22 |