Fun theme. Types of people taking their leave in a punny way. 25A: The paparazzo … (WASGONEINAFLASH), and 60A: The lingerie manufacturer (SLIPPEDAWAY), for example.
Some nice, punny, clues as well, as in 10A: Where auto racers retire? (PITS), 118A: Showplace? (STAGE), 1D: Pet door opener (PAW), and Frannie's favorite - 58A: One heading to the cape? (TORO).
We like the words PURVIEW (96A: Range of understanding), CLOUT (70D: Political muscle), and GHASTLY (87D: Horrifying). And we disliked STRO (116A: Houston pro, informally) (Maybe it's just that we live too far from Houston…), REGREW (4D: Greened up, perhaps), IDENT (71D: PIN part: Abbr.), and SPR (14D: Origin of a stream, Abbr.), but none of it was too terribly bad.
106A: Some hibernators (TOADS) was tricky, as "bears" also fit there, and, hey!, the UTNE Reader is named after 99A: Magazine founder Eric? Who knew? It was also interesting to learn that SIEG means (105D: Victory, to Wagner), and, of course, that an ecdysiast is a stripteaser. The word was coined in 1940 by H.L. Mencken! (Ecdysis is "the shedding of an outer layer of skin or integument, as by snakes or insects.") The things we learn in crossword puzzles!