What a fun Thursday theme we have today. It's not a rebus, but it is multi-lingual! I'm not sure which is my favorite, I like them all so much. Maybe HUITFIELDS (57A: A number of grain-producing sites in Normandy?). But what about DREIMARTINIS (23A: A number of cocktails in Berlin?), which reminds us of the excellent Thurber quote, "One martini is all right, two are too many, and three are not enough."
1A: Writer whose wife said he's a "genius, but what a dirty mind he has" (JOYCE) gets an A. Interesting trivia about an interesting writer. The first answer I put in confidently was ICON (15A: Something to mouse over).
In addition to the fine theme, we have a couple of nice long downs in TECHSECTOR (30D: Part of the Dow) and LIAMNEESON (11D: Voicer of Aslan in "The Chronicles of Narnia") (full names are always appreciated). I can't decide how I feel about DIECI (6D: Italian ten). It's not really bonus theme material, and in a way it kind of dilutes the overall effect. I guess I don't like it. I also didn't love EVENER (29D: Less bumpy), and SINES and EOE are a little gluey, but overall, this is still a thumbs up. Good start to the Turn.