| Onetime urgent mail service | 27 |
| Olympic swimming great Mark | 27 |
| Organization's offshoot | 27 |
| Obedience school objective? | 27 |
| Old Faithful's activity | 27 |
| Opposite of dribs and drabs | 27 |
| One with numerous passports | 27 |
| One wearing a wire, perhaps | 27 |
| One of 57,600 on a gridiron | 27 |
| One should have three a day | 27 |
| Org. issuing nine-digit IDs | 27 |
| Old Communist state (Abbr.) | 27 |
| Old Eurasian locales: Abbr. | 27 |
| Openings for horse trainers | 27 |
| Opposite of legato, in mus. | 27 |
| Old Greek measure of length | 27 |
| One concerned with blocking | 27 |
| One adored by philatelists? | 27 |
| Ollie's comedic partner | 27 |
| Observe all the formalities | 27 |
| One full of surprises, e.g. | 27 |
| Out-of- -- (many a tourist) | 27 |
| One of many American houses | 27 |
| Oscar winners' winnings | 27 |
| Obey an order of protection | 27 |
| One may be prayed to: Abbr. | 27 |
| Outshine a film's stars | 27 |
| One of Chuck Noll's men | 27 |
| One in a cowpoke's herd | 27 |
| Oktoberfest beverage holder | 27 |
| Obsolescent office position | 27 |
| One of 12, at some meetings | 27 |
| Out of ___ (not conforming) | 27 |
| Outboard motor's locale | 27 |
| One way to give a reprimand | 27 |
| Order to keep on the books? | 27 |
| One of the four Evangelists | 27 |
| One often bordered an agora | 27 |
| Old philosophers' place | 27 |
| One who accepts his destiny | 27 |
| One of Zeno's followers | 27 |
| Operagoer's wear, maybe | 27 |
| Opera house attire, perhaps | 27 |
| One of many in a skyscraper | 27 |
| One who tells it like it is | 27 |
| Overlapping part of a fugue | 27 |
| Old brewery name in Detroit | 27 |
| One-down, four-up card game | 27 |
| Omen in a highbrow Western? | 27 |
| Ophthalmologist's cases | 27 |
| Outsource, as part of a job | 27 |
| Orange ghost in Ms. Pac-Man | 27 |
| Oldest settler in the West? | 27 |
| One in a religious majority | 27 |
| Order in a diner, sometimes | 27 |
| Obit for a Baltimore paper? | 27 |
| One's own worst critic? | 27 |
| Olympic event since '88 | 27 |
| One hanging 10 at the beach | 27 |
| Old Hindu funeral tradition | 27 |
| Official language of Uganda | 27 |
| One of Zeus's disguises | 27 |
| Origami creature, sometimes | 27 |
| Outgrowths of a barked shin | 27 |
| One put away for the summer | 27 |
| Objects of poolside ogling? | 27 |
| Organism in a relationship? | 27 |
| Operating procedures: Abbr. | 27 |
| One looking for a lost pet? | 27 |
| Old drum played with a fife | 27 |
| Offensive football position | 27 |
| Opera premiere: Paris, 1881 | 27 |
| Offenbach's masterpiece | 27 |
| One way to sit on the range | 27 |
| One may be worn with a kilt | 27 |
| Oxen may pull plows in this | 27 |
| Orange-colored citrus fruit | 27 |
| One of a Hindu weaver class | 27 |
| One who believes in the Way | 27 |
| O'Hara's plantation | 27 |
| One who is doomed, in slang | 27 |
| Occasions to serve crumpets | 27 |
| One may be found in the den | 27 |
| Often scandalous book genre | 27 |
| Office situation, of a sort | 27 |
| One signing with a landlord | 27 |
| Orange property in Monopoly | 27 |
| Olympic gymnast's goals | 27 |
| One thatÂ’s pitched out? | 27 |
| One of Omar's creations | 27 |
| One on a Maryland NCAA team | 27 |
| Onetime Edison rival Nikola | 27 |
| Of a condition of imbalance | 27 |
| Oklahoma Sooners' rival | 27 |
| Office workers' letters | 27 |
| One of Macbeth's titles | 27 |
| Oversized piece of jewelry? | 27 |
| Obit for a Cleveland paper? | 27 |
| Old form of "you" | 27 |
| Old-time radio crimefighter | 27 |