| Number cruncher, briefly | 24 |
| Number cruncher's letters | 29 |
| Number cruncher of April | 24 |
| Number called in a crisis | 25 |
| Number by Davis and McCoo | 25 |
| Number beyond comprehension | 27 |
| Number between um and três | 29 |
| Number between eins and drei | 28 |
| Number between drei and funf | 28 |
| Number between dos and cuatro | 29 |
| Number before dos and tres | 26 |
| Number before a slash, maybe | 28 |
| Number before "Go!" | 29 |
| Number at a bridal boutique | 27 |
| Number associated with a boom | 29 |
| Number after Big or top | 23 |
| Number after a period: Abbr. | 28 |
| Number after a © symbol | 26 |
| Number 9 iron for Bobby Jones | 29 |
| Number 2 woods for Trevino | 26 |
| Number 2 of the Yankees | 23 |
| Nullify the bank payment | 24 |
| Nullifies, as an oath? | 22 |
| Nullifies an editorial change | 29 |
| Nullifies a correction | 22 |
| Nullified tennis serves | 23 |
| Nul tiel record is one | 22 |
| Nukualofa is its capital | 24 |
| Nuku'alofa is its capital | 29 |
| Nukes with many warheads | 24 |
| Nuisance terminator: Law | 24 |
| Nuisance stoppers, in law | 25 |
| Nuisance remover, in law | 24 |
| Nugget content, in Nicaragua | 28 |
| Nuevo ___ (state in Mexico) | 27 |
| Nuevo ___ (Peruvian currency) | 29 |
| Nuevo __: Peruvian currency | 27 |
| Nuevo __: Peru's currency | 29 |
| Nuevo __: Mexican state | 23 |
| Nuevo __ (Mexican state) | 24 |
| Nueve's square root | 23 |
| Nueva York, por ejemplo | 23 |
| Nueva Galicia governor | 22 |
| Nudity might lead to this | 25 |
| Nudist's covering? | 22 |
| Nudist's antithesis | 23 |
| Nudging, and then some | 22 |
| Nudge, as one's memory | 26 |
| Nudge with an arm bone | 22 |
| Nude-beach visitors, maybe | 26 |
| Nude sunbather's lack | 25 |
| Nude beach acquisition | 22 |
| Nucleus of trained personnel | 28 |
| Nucleus of trained people | 25 |
| Nucleus of potential leaders | 28 |
| Nucleus of military personnel | 29 |
| Nucleus of an action unit | 25 |
| Nucleus + electrons etc. | 25 |
| Nucleic acids, for short | 24 |
| Nucleic acid, for short | 23 |
| Nuclear-treaty subjects | 23 |
| Nuclear-reaction process | 24 |
| Nuclear-powered Soviet subs | 27 |
| Nuclear-plant measurements | 26 |
| Nuclear-plant component | 23 |
| Nuclear-physics devices | 23 |
| Nuclear-fission apparatuses | 27 |
| Nuclear-explosion hot spot | 26 |
| Nuclear __: social unit | 23 |
| Nuclear weapons-testing dept. | 29 |
| Nuclear weapon (Abbr.) | 22 |
| Nuclear vessel, for short | 25 |
| Nuclear trial, for short | 24 |
| Nuclear trial prohibition | 25 |
| Nuclear treaty subjects | 23 |
| Nuclear treaty subject | 22 |
| Nuclear theorist Niels | 22 |
| Nuclear restraint pact | 22 |
| Nuclear reading: Abbr. | 22 |
| Nuclear reactor component | 25 |
| Nuclear reaction starter? | 25 |
| Nuclear power resource | 22 |
| Nuclear power plant measures | 28 |
| Nuclear power apparatus | 23 |
| Nuclear plant structure | 23 |
| Nuclear pioneer Enrico | 22 |
| Nuclear physics prefix | 22 |
| Nuclear physicist Szilard | 25 |
| Nuclear physicist Niels | 23 |
| Nuclear physicist Meitner | 25 |
| Nuclear physicist Enrico | 24 |
| Nuclear or spinal actions | 25 |
| Nuclear Nobelist Niels | 22 |
| Nuclear missile, briefly | 24 |
| Nuclear group set up in 1957 | 28 |
| Nuclear force elements | 22 |
| Nuclear fission target | 22 |
| Nuclear fission Nobelist Otto | 29 |
| Nuclear fission discoverer | 26 |
| Nuclear explosion aftermath | 27 |