Crossword puzzle clue "a violin player uses one"

A violin player uses one

Violin heard in "The Red Violin"

Basketball player Walton + basketball player Westbrook = basketball player ___

What a violin player applies to a bow

Best violin player ever?

Mark that appears four times in this puzzle (hint: the baseball player who's the answer to this puzzle uses one, too)

Problem for a horn player who uses a slide?

Player who uses taunting during a game