Excellent puzzle. Brendan Emmett Quigley never disappoints. Looking at all the ZZZzzz makes me a little sleepy.
17A: Pitcher of baseball's Gas House Gang (Dizzy Dean)
30A: Golf's 1984 U.S. Open winner (Fuzzy Zoeller)
44A: Patriach on an MTV reality show (Ozzy Osbourne)
60A: The Fresh Prince's partner DJ (Jazzy Jeff)
And that's not all. 20A: Old codger (geezer) is under Dizzy Dean, and 4D: Bronx cheer (razz) intersects both of them. Rounding it out is 3D: Moves like molasses (oozes).
Other Z words and intersections
34D: Knock the socks off (amaze)
35D: Take forcibly (seize)
43D: Baseball's David, nicknamed "Big Papi" (Ortiz)
62D: Microwave (zap)
8D: Exotic dancer Lola (Montez)
63A: How the confident solve (in pen). Love that one. We've had that discussion (maybe multiple times) on Rex Parker's blog.
57A: With "cum" and 32-Down, a diploma phrase (magna/laude)
Not sure if 30D: Keister (fanny) is fun fill, but it's the word my dad used when we were growing up. "Get off your keister and set the table."
I wonder if all the ZZZzzz are omens (37A: Signs to heed) that I should get to bed. I think I'll take a couple of Tylenol (26D: Popular reliever of aches) for the pain (41A: Ibuprofen target) in my shoulder that just gnaws (66A: Really bothers, with "at") at me -- and then do just that.
Good night. ZZZzzz...