| Op. --. (where mentioned) | 25 |
| Op. ____ (footnote abbr.) | 25 |
| One way to get to the top | 25 |
| Ohio team, on scoreboards | 25 |
| One on the chopping block | 25 |
| One of the Staple Singers | 25 |
| Old-time actor Montgomery | 25 |
| Open sign's flip side | 25 |
| Overwhelms with sweetness | 25 |
| Official emergency status | 25 |
| One called upon to decide | 25 |
| Old King's side dish? | 25 |
| Open mic performer, often | 25 |
| Old Roman Republic leader | 25 |
| One who murmurs amorously | 25 |
| One of the Village People | 25 |
| Optometrist's concern | 25 |
| Object shaped like a horn | 25 |
| Old-fashioned informally | 25 |
| One sharing the billboard | 25 |
| Offering at U. of Detroit | 25 |
| One who is good with nos. | 25 |
| One doing a balancing job | 25 |
| Ocean Spray flavor prefix | 25 |
| One of a set of 64, maybe | 25 |
| One making picks and pans | 25 |
| One place for pedestrians | 25 |
| Old computer monitor type | 25 |
| Old-style computer screen | 25 |
| Old component of some TVs | 25 |
| Orange ___ (summer drink) | 25 |
| Org. for Va., but not Md. | 25 |
| O'Hare setting: Abbr. | 25 |
| Old-fashioned alternative | 25 |
| One who assumes the worst | 25 |
| Orphan Annie's friend | 25 |
| Old West gang family name | 25 |
| Ophelia or Claudius, e.g. | 25 |
| Org. at Constitution Hall | 25 |
| One of a poetic eightsome | 25 |
| Opposite of 'dis' | 25 |
| One rotation of the earth | 25 |
| Olympic equestrian, James | 25 |
| Operation Overlord launch | 25 |
| Operation-launching times | 25 |
| One with a shingle: Abbr. | 25 |
| Org. involved in seizures | 25 |
| One-hoss shay's owner | 25 |
| One with a list on campus | 25 |
| One of rock's Ramones | 25 |
| Ones that may get ticked? | 25 |
| Opus ___ (God's work) | 25 |
| Old Mughal Empire capital | 25 |
| Obama or Clinton, briefly | 25 |
| Out of fashion, in France | 25 |
| One of TV's Huxtables | 25 |
| One may be made on payday | 25 |
| One who fashions fashions | 25 |
| O'Neill title starter | 25 |
| One with the force: Abbr. | 25 |
| Old Testament book: Abbr. | 25 |
| One-seventh of una semana | 25 |
| Obsolescent phone feature | 25 |
| One of the Lennon sisters | 25 |
| One trying to lose weight | 25 |
| One with designs on women | 25 |
| One with mission control? | 25 |
| One of seven small things | 25 |
| Opposite of a goldbricker | 25 |
| One with a heavy schedule | 25 |
| One-time Clinton opponent | 25 |
| O'Connor from Chicago | 25 |
| Oscar winner as Mr. Chips | 25 |
| Olympic swimmer de Varona | 25 |
| One of a dozen, sometimes | 25 |
| Oft-glazed treat, briefly | 25 |
| Overly unassertive person | 25 |
| Overly submissive persons | 25 |
| Opportunities to speak so | 25 |
| One side of a quad, maybe | 25 |
| One barely passes with it | 25 |
| Olive ___ (uniform color) | 25 |
| One whose work is revised | 25 |
| Oysterman's apparatus | 25 |
| One with a second helping | 25 |
| One settling a score, say | 25 |
| One wearing a conical cap | 25 |
| One in with the out-crowd | 25 |
| One way to remove a spot? | 25 |
| Otologist's specialty | 25 |
| One who minds his manors? | 25 |
| One of N.J.'s Oranges | 25 |
| One place to find icicles | 25 |
| Owner of PayPal and Skype | 25 |
| Onetime partner of Siskel | 25 |
| One name for a heart test | 25 |
| Outmoded currency baskets | 25 |
| One of a 50's quartet | 25 |
| Online social appointment | 25 |
| Out there, in pop culture | 25 |