| One-time title for Billy Crystal | 32 |
| One-time transatlantic speedsters | 33 |
| One-time ventilator used in fighting polio | 42 |
| One-time Washington Senator hopeful | 35 |
| One-time wife of Mickey and Frank | 33 |
| One-time YouTube sensation Zonday | 33 |
| One-time Yukon capital, ___ City | 32 |
| One-toothed dragon of old children's TV | 43 |
| One-up at the poker table, maybe | 32 |
| One-volume works of Shakespeare, e.g. | 37 |
| One-word question from Miss Piggy | 33 |
| One-__ (teacher's quaint workplace) | 39 |
| Onelinedrawing song that sticks to the facts? | 45 |
| OneRepublic "All We ___" | 34 |
| OneRepublic "___ and Stare" | 37 |
| OneRepublic: "___ and Stare" | 38 |
| Ones arguing about diamonds: Abbr. | 34 |
| Ones associated with wheels and deals | 37 |
| Ones at the top of the corporate ladder | 39 |
| Ones at the top of their business? | 34 |
| Ones bearing Valentine's gifts, e.g. | 40 |
| Ones before whom pearls are cast | 32 |
| Ones brought in to negotiate parts of contracts | 47 |
| Ones called to an accident, briefly | 35 |
| Ones coming from the Arc de Triomphe? | 37 |
| Ones concerned with sustainable design | 38 |
| Ones crunched during crunch time? | 33 |
| Ones dressed in stripes, for short | 34 |
| Ones examining bodies of evidence? | 34 |
| Ones fabricating by bending and twisting? | 41 |
| Ones filling out 1040's, for short | 38 |
| Ones flying south for the winter | 32 |
| Ones from the kitchen can be good | 33 |
| Ones gathered for a reading, maybe | 34 |
| Ones getting "worry lines"? | 37 |
| Ones getting a degree in riot control? | 38 |
| Ones getting bottle service, say | 32 |
| Ones getting coll. counseling, maybe | 36 |
| Ones getting hit on at salsa clubs? | 35 |
| Ones getting lots of Bronx cheers | 33 |
| Ones getting Secret Service protection | 38 |
| Ones getting squeezed before breakfast? | 39 |
| Ones getting the show on the road | 33 |
| Ones getting their marching orders | 34 |
| Ones getting to work on Time?: Abbr. | 36 |
| Ones giving marching orders: Abbr. | 34 |
| Ones giving or receiving alimony | 32 |
| Ones guilty of disorderly conduct? | 34 |
| Ones happy to give you their addresses? | 39 |
| Ones heading for the hills?: Abbr. | 34 |
| Ones holding wraps in restaurants | 33 |
| Ones hooked on breakfast pastry? | 32 |
| Ones hopeful for future headlining | 34 |
| Ones in an instituteur's care | 33 |
| Ones in concert with con artists | 32 |
| Ones in control of their faculties? | 35 |
| Ones in distress, stereotypically | 33 |
| Ones in matching tuxes, sometimes | 33 |
| Ones in the constriction business? | 34 |
| Ones in the House of Commons, briefly | 37 |
| Ones involved in an elaborate courtship | 39 |
| Ones keeping the wheels turning? | 32 |
| Ones likely to go "hic!" | 34 |
| Ones little-known in their fields | 33 |
| Ones loaded with Valentine gifts | 32 |
| Ones loaded with Valentine's gifts | 38 |
| Ones making amphibious landings? | 32 |
| Ones making deliveries at colleges? | 35 |
| Ones making some safe decisions? | 32 |
| Ones manifesting Manifest Destiny | 33 |
| Ones maturing quickly, for short | 32 |
| Ones minding their peas in queues? | 34 |
| Ones needing career counseling, maybe: Abbr. | 44 |
| Ones neither withdrawn nor outgoing | 35 |
| Ones not entirely gay or straight | 33 |
| Ones not getting their deserved acclaim | 39 |
| Ones of the highest grade: Abbr. | 32 |
| Ones often in distress, in fairy tales | 38 |
| Ones on the field who aren't team players? | 46 |
| Ones overseeing monk-y business? | 32 |
| Ones putting on a show, for short | 33 |
| Ones ranking below ensigns: Abbr. | 33 |
| Ones read on the sports pages in Chicago? | 41 |
| Ones really attached to their surroundings | 42 |
| Ones released from an institution? | 34 |
| Ones reliant on the local blood supply | 38 |
| Ones running away from the back of a ship? | 42 |
| Ones running away with the game? | 32 |
| Ones running shoulder to shoulder? | 34 |
| Ones scornful of Bounty and the like? | 37 |
| Ones seeking locations for Bollywood movies? | 44 |
| Ones sexually flexible, for short | 33 |
| Ones sharing Durocher's astrological sign | 45 |
| Ones showing varying amounts of interest? | 41 |
| Ones soon to leave the ivied halls: Abbr. | 41 |
| Ones sticking their necks out to entertain? | 43 |
| Ones stuck in the hospital, for short? | 38 |
| Ones taking a lot of interest in their work? | 44 |
| Ones taking a sultan's orders | 33 |
| Ones that live near Hawaiian geese? | 35 |