“Tennis format … or a description of some of the letters in 20-, 31- and 38-Across”

Org. of the main characters in "The Americans"

What might rain down on opposing players

Words before "Obi-Wan Kenobi. You're my only hope"

Drum location

___-Seltzer

Gamer's likeness

It follows ka in the Spanish alphabet

500 sheets of paper

Barbershop stock