We flew through this one, but there were some nice answers. THEWAVE (15A: Thousands of fans might do it), and RIPOPEN (17A: Unwrap in a hurry) were nice, and I enjoyed seeing MANTLE (22A: Layer of the earth between the crust and the core). ISBN (46A: 13-digit library info) has been hot lately. It was in at least twice in the last week, I'm pretty sure.
The clues for TANLINE (66A: A lifeguard's whistle might create one) and PLEDGES (69A: Pinto and Flounder, in "Animal House") were original, I thought, but the clues for LOSS (34A: Destruction) and TARRED (55A: Sealed, as a driveway) seemed a little off.
The theme (NAMEDROPPER (12D: Status-seeking sort... or a solver of this puzzle, initially?)) was ok, I guess. All the names start with N and D. I guess it's fine, and I love the clue for NANCYDREW (20D: Amateur detective in 1967's "The Clue in the Crossword Cipher"). That was a nice touch.
As I review it, it seems like there's a fair amount of crosswordy material, but we filled in the longer clues so easily that we didn't even notice all the ORG, NAE, ALS, LEI, OTIC, AHI, CTR, CSA stuff at all. On balance, an enjoyable enough puzzle.