1950s leading man of Hollywood (or, maybe, uh, a hypothetical laser gun produced by a Canadian shoe manufacturer? Honestly, that might be an easier clue...)
8A
Energetic and controversial solo artist most popular in the 1980s but still shocking audiences to this day
9A
Non-medicinal sleep aid
10A
Terse after-school summons, maybe written on a failed test
11A
NWA rapper Eminem never forgot about
Down
1D
Malicious instance
2D
Large feminine undergarment (singular)
3D
Ciccone, Yamazaki, etc.
4D
Kills it at the club (or, less ideally, with the club)
5D
Sashay à Saint-Lô, pirouette à Paris, etc.
6D
Prefix commonly associated with African-American churches