DOWNGOESFRAZIER (17A: Repeated cry in a 1973 fight) is an awesome fifteen, and it made me blind to this puzzles faults, if, indeed, it has any. Honestly, I'm not even going to look for them.
Let's talk, then, about the other good things. CHINCHILLA (15A: Fur source) - awesome. ASHTREES (44A: They might become bats), easy, but also great. BOLEYN (28A: Tudor who lost her head) - great. EROICA (42D: Work first publicly performed at the Theater an der Wien in 1805.) - great. DISSENT (35A: Minority report?) - great. TOLEDOOHIO (29A: The Glass Capital of the World) - huh. Who knew? Also in that category GOURDE (18D: Currency of 46-Down (HAITI)). Really? I don't suppose it's honest-to-god gourds, unfortunately, but maybe it comes from that? No… Wikipedia mentions nothing of the sort, so it's probably not true.
SHAGGY (9D: Like yaks) - well-clued. ELIZA (11D: The "you" in "On the Street Where You Live") - very nice, and it makes me think of recent guest blogger and recent visitor of Italy, Colum, who once sang this publicly to his wife (not named Eliza, and not at the Theater an der Wien). Isn't that the case?
Even the two "God" answers don't upset me today. That's how much this puzzle put me ONCLOUDNINE (24D: Elated).
Excellent. Loved it.