Agree w/ Rex that Michael Shteyman's puzzle has a themeless feel. It's a nice construction feat, w/ 32 black squares, 72 words, and six interlocking -TRA answers. Was vaguely thinking there'd be a reveal for the TRAs, but no. DESCANT is kind of an implicit reveal, but not really. The puzzle might have sung a bit more if there had been three thematic answers ending in TRA and three ending in LA.
Two quibbles: The extra TRAs in ASTRAY and D TRAIN are a minor infelicity. ABUTTAL is not pretty.
A minor point about the grid: I like the way the three-letter answers are stacked in the SW and NE instead of the NW and SE; three-letter stacks in the NW give a grid a cramped feel.
Thx to Rex for his LA Times link. Also thx for his delicately worded point about cluing a first lady w/o any indication other than gender convention that a first name is being sought. Yep....suppose you could go with "first for a 1910s first lady" as a modest misdirection clue for EDITH.
Nice point by C. Ross Word about the cross of FRANK SINATRA and COSA NOSTRA. Combine that with the LAs of LADY DI and SLAY and you've got a nice sinister vibe.