| Ones graded E-8 in the Army | 27 |
| Ones going to Washington? | 25 |
| Ones going through channels? | 28 |
| Ones going through a stage? | 27 |
| Ones going on a long walk? | 26 |
| Ones going in circles? | 22 |
| Ones going home after dinner? | 29 |
| Ones going head to head? | 24 |
| Ones going head to head | 23 |
| Ones giving winner forecasts | 28 |
| Ones giving their addresses | 27 |
| Ones giving the once-over | 25 |
| Ones giving high praise | 23 |
| Ones giving cash for quarters | 29 |
| Ones given money to waste? | 26 |
| Ones getting marching orders | 28 |
| Ones getting base pay?: Abbr. | 29 |
| Ones getting all A's | 24 |
| Ones getting a licking? | 23 |
| Ones getting a good licking? | 28 |
| Ones for the record books | 25 |
| Ones for the record book | 24 |
| Ones flying in formation | 24 |
| Ones fleeing from home | 22 |
| Ones finishing shampoos | 23 |
| Ones falling in alleys | 22 |
| Ones drawn to flames, briefly | 29 |
| Ones doormen recognize | 22 |
| Ones doing the splits? | 22 |
| Ones doing tests: Abbr. | 23 |
| Ones doing hatchet jobs? | 24 |
| Ones doing case studies | 23 |
| Ones doing art finishing | 24 |
| Ones doing a balancing job? | 27 |
| Ones dealing in futures? | 24 |
| Ones cutting in line, e.g. | 26 |
| Ones copying from Dictaphones | 29 |
| Ones concerned with custody | 27 |
| Ones concerned with color | 25 |
| Ones concealing their aims | 26 |
| Ones closely packed in | 22 |
| Ones close to the heart? | 24 |
| Ones close to le coeur | 22 |
| Ones charging reading fees? | 27 |
| Ones caught in a maze? | 22 |
| Ones carrying an apostle? | 25 |
| Ones breaking up clods | 22 |
| Ones born in late July | 22 |
| Ones born before Virgos | 23 |
| Ones blowing in the wind | 24 |
| Ones bet on by bettors | 22 |
| Ones being grilled, maybe | 25 |
| Ones banned from their homes | 28 |
| Ones attracted to flames | 24 |
| Ones at the pole positions? | 27 |
| Ones at the helm, essentially | 29 |
| Ones at the gate, maybe | 23 |
| Ones at the feeding trough | 26 |
| Ones at home on the range? | 26 |
| Ones among the coop populace | 28 |
| Ones administering CPR, often | 29 |
| Ones added to the payroll | 25 |
| Ones above military heads | 25 |
| Ones a mother hen mothers | 25 |
| Ones "over there" | 27 |
| Oneirocritics' field | 24 |
| Oneidas, Senecas, et al. | 24 |
| Oneida's county seat | 24 |
| Oneida Community founder | 24 |
| One-___, children's game | 28 |
| One-___ victory (rout) | 22 |
| One-___ (old ball game) | 23 |
| One-___ (like a cyclops) | 24 |
| One-___ (kids' game) | 24 |
| One-___ (kid's game) | 24 |
| One-__: uninterrupted play | 26 |
| One-word Built to Spill song | 28 |
| One-word bird in a poem | 23 |
| One-way street sign symbol | 26 |
| One-volume encyclopedia range | 29 |
| One-upmanship on the set | 24 |
| One-two part, sometimes | 23 |
| One-twentieth of MMMXX | 22 |
| One-twentieth of an old franc | 29 |
| One-twentieth of a shekel | 25 |
| One-twelfth of the AA program | 29 |
| One-twelfth of a gross | 22 |
| One-trillionth: Comb. form | 26 |
| One-touch phone feature | 23 |
| One-time Yugoslav leader | 24 |
| One-time Yugoslav chief | 23 |
| One-time Yankees manager | 24 |
| One-time word processors | 24 |
| One-time Wimbledon winner | 25 |
| One-time wife of Mickey | 23 |
| One-time White House nickname | 29 |
| One-time Wall St. watchdog | 26 |
| One-time video game sensation | 29 |
| One-time Venetian coin | 22 |
| One-time U.S. alliance | 22 |