I felt this puzzle was on a Tuesday difficulty level. Nothing too complex in the cluing or the answers, really. The grid is filled with 3-letter answers. And the theme is cute, but nothing too clever. After all, Mr. Berry gets to put in his punny answers with the X but doesn't have to cross the X with any answers containing X! It feels a bit like a cheat.
My favorite of the theme answers were: BEAUTYCONTE[S/X]T, EVERGREENTRE[E/X], and SKIPTOMYLO[U/X]. The very first thing I entered was the theme answer at 29A:
Other than that, not much to report. I know Huygens will like 123A: You'll see a lot of them (NUDISTS), and I loved the clue. I also enjoyed 82D: Raised on books? (EMBOSSED). And finally, I know 65A: Mohs-scale mineral (TALC) from helping my daughter study for Earth Sciences. I think Horace's father would enjoy that one as well. A very strange hyphen in there. I don't think it's needed.
Once again, Sunday fails to live up to the end of the week themeless puzzles.