| Blasts from the past, briefly | 29 |
| Bikini trials, briefly | 22 |
| Atomic bomb trials, briefly | 27 |
| Arms treaty subjects, briefly | 29 |
| Degree in mathematics? | 22 |
| Umpteen's ordinal? | 22 |
| Mathematician's ordinal | 27 |
| Degree of considerable degree | 29 |
| Utmost degree, in math | 22 |
| Unspecified numerical power | 27 |
| To the ___ degree (totally) | 27 |
| Mathematician's degree? | 27 |
| Infinite ordinal number | 23 |
| Degree without a vowel | 22 |
| "___ Degree" | 22 |
| Unspecified, degreewise | 23 |
| Unspecified high degree | 23 |
| Unspecific ordinal number | 25 |
| This word has no vowels | 23 |
| Thing of variable degrees | 25 |
| One high degree or another? | 27 |
| Nonspecifically high degree | 27 |
| Mathematician's number | 26 |
| Mathematically high degree | 26 |
| Math's highest degree? | 26 |
| Last in a very long line | 24 |
| Last in a theoretical series | 28 |
| Last in a mathematical series | 29 |
| Kind of power, in math | 22 |
| Kind of power or degree | 23 |
| Indefinitely large degree | 25 |
| Indefinite ordinal number | 25 |
| Highest ordinal number? | 23 |
| ___ root (math quantity) | 24 |
| Â Â Math ordinal | 22 |
| Unspecified degrees, in math | 28 |
| Some versions of Windows | 24 |
| Some Bible versions: abbr. | 26 |
| Performance times: Abbr. | 24 |
| Accident investigation agcy. | 28 |
| Fed. accident investigator | 26 |
| Crash-investigating org. | 24 |
| U.S. accident investigator | 26 |
| Airline investigative org. | 26 |
| Fed. crash investigator | 23 |
| Crash-investigating agcy. | 25 |
| US accident investigator | 24 |
| Govt. investigative org. | 24 |
| Govt. crash investigator | 24 |
| Fed. crash site investigator | 28 |
| Crash investigators: Abbr. | 26 |
| Crash investigation org. | 24 |
| Black-box analyzers: Abbr. | 26 |
| Amtrak overseer: abbr. | 22 |
| Accident-investigating org. | 27 |
| Accident investigator (abbr.) | 29 |
| Amt. on a food package | 22 |
| Supermarket item abbr. | 22 |
| Packaging information: Abbr. | 28 |
| It's often shown in oz. | 27 |
| Food-minus-pkg. measure | 23 |
| Food pkg. contents measure | 26 |
| Abbr. on a food container | 25 |
| Easy-to-overlook detail | 23 |
| It can be hard to detect | 24 |
| Careful writer's concern | 28 |
| The price of subtlety? | 22 |
| Short piece of a pencil | 23 |
| Pencil on its last legs | 23 |
| Broken crayon, perhaps | 22 |
| Ancient Nile Valley kingdom | 27 |
| Ancient Egyptian kingdom | 24 |
| Region of ancient Africa | 24 |
| Region in Egypt and Sudan | 25 |
| Ancient Red Sea kingdom | 23 |
| Ancient kingdom on the Nile | 27 |
| Ancient African kingdom | 23 |
| Worn-down pencils, say | 22 |
| One-inch pencils, for example | 29 |
| Much-sharpened pencils | 22 |
| Word with family or winter | 26 |
| Kind of power or family | 23 |
| Kind of fusion or fission | 25 |
| Kind of fission or family | 25 |
| Scientific research centers? | 28 |
| Sculptor's subject | 22 |
| Revealing work of art? | 22 |
| Not having a stitch on | 22 |
| Like some college art models | 28 |
| Like one of Goya's Majas | 28 |
| How you entered the world | 25 |
| Goya's Maja is one | 22 |
| Classic artist's subject | 28 |
| Botticelli's Venus, e.g. | 28 |
| As one entered the world | 24 |
| Popular lingerie color | 22 |
| Painting not for the demure | 27 |
| Not decent, so to speak | 23 |
| Marcel Duchamp subject | 22 |
| Like some yoga classes | 22 |