Two early puzzles this week of higher than typical quality. I am impressed by this effort: very smooth fill with another fairly dense level of theme answers. I didn't expect that the two long down answers were going to be part of the theme also.
So, the scientists among us will certainly enjoy this STATESOFMATTER theme. The classic trio of ice, water, and steam are represented in three solid answers, and as a bonus, their three states are given at 52A (SOLIDLIQUIDGAS).
There are two very nice 9-letter nonthematic answers at 17A: Nut from Hawaii (MACADAMIA), which we very much enjoyed on our honeymoon, nearly twenty years ago (!), and at 60A: Bursting with joy (EBULLIENT). Some very nice 6-letter answers are scattered throughout as well, including DEBARK, AWEIGH, and SAILED, a nice trio of boating answers to go along with STEAMBOATS. I also enjoyed JESTER, HECKLE, and RAQUEL for their Scrabble letters.
REBOIL is acceptable sort of. EMIR and PASHA in the same puzzle also. ALCOA is very crosswordish. Is chili really ZESTY? Seems not quite apt.
1A: Tori who sang "Cornflake Girl" (AMOS) - I've always been a fan of her music from the 90s. I have not kept up with her at all since then. I'll give her a B+ for her connection to Neil Gaiman, one of my favorite authors, but downgrade it to a B for that particular song reference. I would have preferred a reference to "Precious Things".
Thumbs up from this point of view.