In the late 1980s, Ernest and Julio Gallo put out a series of commercials that seemed to be on TV all the time. My brothers and I frequently mimicked (mocked?) the people in them, and sometimes, even today, when tasting a new wine, we will exclaim "Ahh... Gallo!" even though it is not - was not and never will be - a Gallo wine. It is for this reason that I cannot believe I was stumped by 42A: Grenache, for one (VINROSE). But 35D: Degree of expertise in martial arts (DAN) was no help, so I tried something other than an N at first, before running the alphabet and kicking myself.
Other than that, though, this was a pretty good puzzle with an unusual DOSEQUIS theme. I got REDDFOXX (17A: "Sanford and Son" star of 1970s TV) right away, but didn't know NEXXUS as a "High-end shampoo brand," so it wasn't until EXXONMOBIL that I started to think about the theme. The revealer finally gave it away, and then TJMAXX and ANTIVAXXER (38A: Shot blocker?) (Tricky!) became clear.
I like the staggered sevens and eights falling through the middle. BAGHDAD (44D: Second-largest Arabic-speaking city after Cairo) gets a good trivia clue, GONDOLAS is lovely, and ARRIVING is fine, and I'm looking forward to sitting in a BOXSEAT at Fenway on Sunday night!
A few bits of RIA, ANNO, ORU, AGGRO and MADERA (Ma-where-a?), but we've also got ELIXIR, APEXAM, NSFW, AVIARY, and POX! It's a debut puzzle, and it's a good one. Congratulations!