Two tough areas today! The first was the SW, where, if we hadn't just seen ENA (65D: Bambi's aunt) on Sunday, we might have been in some real trouble. Never heard of DEBI 64A: Mazar of "Entourage," nor ENOL "68A: ____ ether", either. What a mess! The other area was the center, where 29D: Joy Adamson's big cat (ELSA) was an unknown, but SINAI (42A: Battle zone of 1956 and 1967) was inferrable, so that wasn't as bad, but still, this is Wednesday!
The theme was odd. Frannie's not a fan of circles, and if I were basing my judgement on today's grid alone, I wouldn't be either. I guess it's a little bit neat that initials of things related to the theme answers can be taken out of their names in order, but I wouldn't go any farther than "a little bit neat," I don't think.
Nothing terribly remarkable in the fill. CABO (43A: Baja resort area) should excite at least one of our readers, and EATER (66A: What "-phage" means) would be interesting if I could think of a single word that uses that suffix. ?? Seriously, it's Wednesday, right?
Blah. Got ATESTS, OAST, RAZR, AMOLE...
Not my favorite puzzle.