Today's theme targeted a bunch of saps. We get PIGEON, CHUMP, SUCKER, and MARK at the start of three common expressions, and one name. Chump and Sucker are great sounding words, even though one wouldn't want to hear them applied personally.
It seemed a little LOCA to have the revealer be the people who target mugs (CONMEN) rather than the mugs themselves. I also thought it was a little odd to have the revealer as a down, while the theme answers were all acrosses. Have we had that before? Also, does UCONN count as theme material?
I raise my isinglass to 1A Flaky mineral (MICA) and give it a solid a B+. Other nice fill I draw your ATTN to includes SPORE (15A), GENT (16A), VOODOO (10D), EROICA (11D), ANTONYMS (4D), LIPSYNC (5D), USURPS (45D), and UNDEROOS (37D) because wearing Underoos is fun.
My least favorite today is IBANKER (Pro at building financial worth, slangily). Other entries I had a slight AVERsion to include APCALC (9D), OAS (53D), and BNEG (54D).
Don't take any wooden nickels.