| One before Hump Day: abbr. | 26 |
| One before four | 15 |
| One before dix | 14 |
| One before bi | 13 |
| One before a tribunal, maybe | 28 |
| One beaten by an ape | 20 |
| One beaten by a beatnik | 23 |
| One bearing witness | 19 |
| One bearing presents | 20 |
| One bearing down? | 17 |
| One bearing down hard | 21 |
| One bearing down | 16 |
| One bear | 8 |
| One batting result | 18 |
| One barred from bars | 20 |
| One barred from a U.N. no-fly zone | 34 |
| One barred from a bar | 21 |
| One barely running? | 19 |
| One barely riding? | 18 |
| One barely passes with it | 25 |
| One barely living? | 18 |
| One barely getting along? | 25 |
| One banished | 12 |
| One ballplayer becomes four | 27 |
| One bad way to run | 18 |
| One bad thing after another | 27 |
| One backing a bet | 17 |
| One back in the pack | 20 |
| One back from a theater | 23 |
| One axing | 9 |
| One awaiting a shipment, maybe | 30 |
| One awaiting a delivery, maybe | 30 |
| One awaiting a catch | 20 |
| One avoiding the service entrance? | 34 |
| One avoiding the issue | 22 |
| One avoiding service | 20 |
| One avoiding a big wedding | 26 |
| One averse to mingling | 22 |
| One available in Mex. | 21 |
| One available in Ãvila | 25 |
| One available for the taking? | 29 |
| One available for future reference? | 35 |
| One authorized to act for another | 33 |
| One author, or two English monarchs | 35 |
| One attracting considerable interest? | 37 |
| One attracted to vinegar | 24 |
| One attracted to a flame | 24 |
| One attending Yale | 18 |
| One attending to little things | 30 |
| One attempting to clean out the house | 37 |
| One attacking a colony, maybe | 29 |
| One attached to a handle | 24 |
| One atop a golf scoreboard | 26 |
| One at ____ | 11 |
| One at ___ (singly) | 19 |
| One at ___ | 10 |
| One at __ (individually) | 24 |
| One at __ | 9 |
| One at Times Square on New Year's Eve | 41 |
| One at the wheel of a gherkinmobile? | 36 |
| One at the wedding, perhaps | 27 |
| One at the wedding | 18 |
| One at the U.S. Mint? | 21 |
| One at the top of the board | 27 |
| One at the top of the bill | 26 |
| One at the switchboard | 22 |
| One at the start | 16 |
| One at the plate | 16 |
| One at the kids' table, perhaps | 35 |
| One at the keyboard | 19 |
| One at the helm | 15 |
| One at the front desk, perhaps | 30 |
| One at the front | 16 |
| One at the end of the line? | 27 |
| One at the end of the line | 26 |
| One at the edge of the gutter | 29 |
| One at the computer | 19 |
| One at the bottom of the totem pole | 35 |
| One at the beginning | 20 |
| One at the bar | 14 |
| One at table | 12 |
| One at sea | 10 |
| One at Roanoke, e.g. | 20 |
| One at risk of excommunication | 30 |
| One at rest | 11 |
| One at Orly | 11 |
| One at home on the range | 24 |
| One at home in a mask | 21 |
| One at ease | 11 |
| One at an Occupy protest, probably | 34 |
| One at an expo | 14 |
| One at an early bash in Eden | 28 |
| One at an audition | 18 |
| One at a woman's side? | 26 |
| One at a wedding reception | 26 |
| One at a time | 13 |
| One at a sidebar | 16 |
| One at a reunion | 16 |
| One at a recital | 16 |
| One at a PC | 11 |