Reward the players WSJ Crossword Clue

Imagine a sound of appreciation that involves your hands meeting energetically.

????: To strike the palms of the hands together with a sudden explosive sound, often as a sign of approval or appreciation.

The clue suggests an action that is a common response to a performance, often given to show appreciation to the players or performers. '????' is the act of applauding, which is a typical way to reward performers.

Thunder sound, Show appreciation, in a way, Put one's hands together, Slow ___ (response from the unamused), Show appreciation for a performance