1: Beatnik embraces nude in nightclub (7)
4: Notice the parts of speech and get different parts of speech (7)
7: One hundred-odd bits of bombs in some projectiles initially (5)
10: Send back stopwatch, as an example (5)
11: Vicious return to professional serve reveals the inequality. (13)
12: Stretched form of a verb (5)
13: Delicate stem is enlightening (5,4)
14: Red Square leaders picking up wild stories with electronic gear (9)
16: Mark in Russian bar, empty the night before (5)
17: Challenge the bench in retaliation. (13)
20: Backblock not all there (3)
21: Ray is a guy who just loafs around, so people say (5)
22: Mrs. Roosevelt East, Trim, Oregon (7)
23: Bore stopped outside ancient city (7)