Constructor: Josh Knapp
Time: 13:26. Got incorrect at 13:05; had the typo SUPER VILLAEN. Hands up w/ Rex and others for BENEFITING and NFL. My favorite MR dumbness for today was going w/ ARTHRITIC for ART CRITIC. Happy not to have too laborious a solve on my birthday--<2x Rex and finished a v. respectable 8 seconds behind tushnet after getting pasted by both of my betters yesterday.
CrossWorld buzz. Excellent! A v. big yes to the cool combination of a standard Maleska-era three answers theme w/ WORLD DOMINATION, MAD SCIENTIST, and SUPERVILLAIN (all an implicit birthday tribute to the Meta-evil MetaRex, methinks) along w/ a secondary clue-created "line" theme w/ SLEEPER CAR and FISHING ROD. Nice aura of menace from the combo of CAMEL and SMOKING GUN. GRAPE SHOT and the cute acidulous misdirection clue on ART CRITIC were also nice. Nice to have IAGO come in, too, as noted by Carola and others in the commentariat. Also like the down at the heels menace of the "Many a booted ruler" clue for EXILE. All this and a pretty grid w/ only 70 words and 32 black. Wow.
CrossOver buzz: Very nice. This is groovy for all. The double theme may cause a bit of trouble to in-betweeners who do the puzz enough to have a conviction that A Theme Is A Theme Is A Theme and to be confused or annoyed by the doubling up today. Don't think that's a big ish.