| Oil cartel's initials | 25 |
| Old school crooner Jackie | 25 |
| Oft-subtitled performance | 25 |
| Offer one's two cents | 25 |
| Oxygen network co-founder | 25 |
| One beginning to history? | 25 |
| Ocean swimmer's worry | 25 |
| One may be dipped in milk | 25 |
| Ornately embossed edibles | 25 |
| Out-of-control indulgence | 25 |
| Oxford University college | 25 |
| Onetime Esposito teammate | 25 |
| Organ repair sites: Abbr. | 25 |
| One place to spend kroner | 25 |
| Opera by Rossini or Verdi | 25 |
| Oklahoma tribesman (Var.) | 25 |
| Old Platte River dwellers | 25 |
| Other "mujeres" | 25 |
| Old Polo Grounds favorite | 25 |
| Opposite of 'non' | 25 |
| On the ___ (not speaking) | 25 |
| Outgrowth of a seed plant | 25 |
| One of the acting Wilsons | 25 |
| One who's in the hole | 25 |
| One likely to give a hoot | 25 |
| One hardly giving a hoot? | 25 |
| One of the English gentry | 25 |
| Olive in the funny papers | 25 |
| Olive with hardly any fat | 25 |
| Olive with a little salt? | 25 |
| Olive of 'Popeye' | 25 |
| Osbourne of Black Sabbath | 25 |
| One running for Congress? | 25 |
| On the same ___ (in sync) | 25 |
| One who champions a cause | 25 |
| One with hot dates, maybe | 25 |
| One of the Canary Islands | 25 |
| Opposite of a rave review | 25 |
| One in charge wears these | 25 |
| Office staple, ironically | 25 |
| One way to send a package | 25 |
| One of the kitchen police | 25 |
| Optional Medicare section | 25 |
| One of six pieces by Bach | 25 |
| One likely to get assists | 25 |
| One moves before the king | 25 |
| One of the king's men | 25 |
| Office staples, for short | 25 |
| One-hundredth part: Abbr. | 25 |
| One hoofing it, for short | 25 |
| One way to lose a sunburn | 25 |
| Opposing side of a strike | 25 |
| One of a group of 12, say | 25 |
| One with a searching gaze | 25 |
| One-named soccer immortal | 25 |
| On-site day care, perhaps | 25 |
| O.K.'s from city hall | 25 |
| One-time Argentine leader | 25 |
| Offender, in police lingo | 25 |
| Obedience school attendee | 25 |
| Org. opposed to fur coats | 25 |
| One of a New Testament 12 | 25 |
| Org. connected with links | 25 |
| Org. for Couples and Love | 25 |
| Org. for Barber or Player | 25 |
| Org. behind Daly and Love | 25 |
| One that eats: Comb. form | 25 |
| Opera interrupter of note | 25 |
| One with remarkable skill | 25 |
| Oprah's doctor friend | 25 |
| Oceanside strolling areas | 25 |
| ODs, with "out" | 25 |
| One with a sticking point | 25 |
| One quarter of two quarts | 25 |
| One of Knight's group | 25 |
| Old King Cole's smoke | 25 |
| One in a dangerous school | 25 |
| Opposite of schadenfreude | 25 |
| Outfit with feet, perhaps | 25 |
| Outfit that may have feet | 25 |
| One might do some banking | 25 |
| One looking to the future | 25 |
| One on bended knee, maybe | 25 |
| Onomatopoetic water sound | 25 |
| One way to prepare an egg | 25 |
| One who's well versed | 25 |
| Oddsmaker's equalizer | 25 |
| Often-televised card game | 25 |
| Office seeker, informally | 25 |
| Office seekers, for short | 25 |
| Online commercial message | 25 |
| One doing research, maybe | 25 |
| One of a poetic pocketful | 25 |
| Ounce of protection worth | 25 |
| Oh, so softly: Mus. abbr. | 25 |
| One in charge, informally | 25 |
| Obnoxiously proper person | 25 |
| One may have many runners | 25 |
| One who hopes to succeed? | 25 |
| One who is not amateurish | 25 |