| X follower in B'way ads | 27 |
| X Games accomplishments | 23 |
| X Games skateboarder Bucky | 26 |
| X Games skiing star Hudak | 25 |
| x or y line on a graph | 22 |
| X or Y, in an equation | 22 |
| X years before Hastings | 23 |
| X's to go with O's | 26 |
| X's, for some writers | 25 |
| X, in a letter's closing | 28 |
| X, __ "xylophone" | 27 |
| X- --- (took internal pix) | 26 |
| X-coordinate of a point | 23 |
| X-files subjects, for short | 27 |
| X-Games motorcycle race | 23 |
| X-quantities to be solved | 25 |
| X-rated entertainment, maybe | 28 |
| X-ray -- (sci-fi glasses) | 25 |
| X-ray examiners: Abbr. | 22 |
| X-ray follow-up, perhaps | 24 |
| X-ray follow-up, sometimes | 26 |
| X-ray imaging technique | 23 |
| X-ray of the hips feature | 25 |
| X-ray vision and flight, e.g. | 29 |
| X-ray vision deterrent | 22 |
| X-Ray __: U.K. punk band | 24 |
| X-Ray ___ (gag glasses) | 23 |
| X-ray ___ (kids' goggles) | 29 |
| X-ray ___ (novelty item) | 24 |
| X-ray ___, joke shop offering | 29 |
| X-ray's noisier relative | 28 |
| Xanadu rock band briefly | 28 |
| Xanadu 2.0, to Bill Gates | 25 |
| Xanadu inhabitant of cinema | 27 |
| Xanadu's pleasure ___ | 25 |
| Xanadu's sacred river | 25 |
| Xanax maker, originally | 23 |
| Xanax user's problem | 24 |
| Xanthippe shopped here | 22 |
| Xanthippe's husband | 23 |
| Xanthippe's marketplace | 27 |
| Xanthippe's target | 22 |
| Xanthippe, to Socrates | 22 |
| Xavier Cugat offering: Var. | 27 |
| Xavier Cugat's ex-wife | 26 |
| Xavier Cugat's nickname | 27 |
| Xavier University locale | 24 |
| Xavier's former spouse | 26 |
| Xaviera Hollander book | 22 |
| Xbalanque, for instance? | 24 |
| Xbox 360 motion sensor | 22 |
| Xenocrates' mentor | 22 |
| Xenophanes taught there | 23 |
| Xenophile's friend | 22 |
| Xenophobe's aversion | 24 |
| Xenophobe's bugaboo | 23 |
| Xenophobe's nightmare | 25 |
| Xenophon's teacher | 22 |
| Xer's parent, probably | 26 |
| Xhosa's language group | 26 |
| Xhosa's linguistic family | 29 |
| Xiamen's former name | 24 |
| XIX Olympic Winter Games year | 29 |
| xkcd comic artist Randall | 25 |
| xkcd superfan, probably | 23 |
| XKE's make, for short | 25 |
| Xmas gifts for children | 23 |
| Xperia tablet producer | 22 |
| XTC "King for ___" | 28 |
| XVIIth-century midpoint | 23 |
| XXX drink, in the comics | 24 |
| XXX-rated entertainment | 23 |
| Xylophone player's needs | 28 |
| Xylophone's cousin | 22 |
| Xylophone's relative | 24 |
| Xylophone-like instruments | 26 |
| Xylophonist's need | 22 |
| Xylophonist's tool | 22 |
| XYZ of 1797–98, e.g. | 27 |
| Xzibit song used for testing? | 29 |