One-third of my Thursday time! But with a silly error. I guessed ETa, thinking even as I did it that it might be a D, but I never checked back. I wondered about ARRIa. Ah well. At the tournament, I'd have 45 seconds to take a look over and see if I made a mistake, right?
Meanwhile, this puzzle was right on my wavelength in so many different ways. My first answer was 2D: Genetic disorder carried by Queen Victoria (HEMOPHILIA). I recently read a biography of Tsar Nicholas, who was married to Victoria's granddaughter, Alexandra. Their son had hemophilia, which is a horrible disease, by the way. But a gimme for me nonetheless.
SONDHEIM was another immediate gimme, as was CHEVRE (drooling right now...) and LIVER. That whole corner fell in under 30 seconds. 1D: School card (CLASSCLOWN) is going on the list of great clues. I don't think we've added anything to that list for quite some time. [Turns out it was just last week. D'oh!]
Meanwhile, 20D: Mozart title (HERR) is also very good, and I smiled but was not at all fooled by 36A: Port authority? (WINEMAKER).
But seriously, that's not even all. There's a Monty Python reference (KINGARTHUR), an astronomy/Greek mythology reference (CHARON), an acknowledgement of Joe BIDEN's awesomeness.
I have absolutely no complaints except that it was too easy.