Answer:

clap

Answer	Crossword Clue
CLAP	Acknowledge the band
CLAP	Request an encore, perhaps
CLAP	Thunder noise

CLAP	Bit of applause
CLAP	Show appreciation
CLAP	Applaud
CLAP	Thunder blast
CLAP	Burning in one's loins, with "the"
CLAP	Join hands?
CLAP	Eggspress approval
CLAP	Thunder sound

CLAP	Close noisily
CLAP	Put your paws together
CLAP	Give a hand
CLAP	Put your hands together
CLAP	Smack two palms
CLAP	Thunderous sound
CLAP	Palm-on-palm sound
CLAP	Play Mary Mack, e.g.

CLAP	Give it up, so to speak
CLAP	Put one's hands together
CLAP	Something to do after the show
CLAP	Respond approvingly
CLAP	Show appreciation at a performance
CLAP	Give the performers a hand
CLAP	Show enjoyment at a show
CLAP	Storm sound

CLAP	Show appreciation at a show
CLAP	Show support
CLAP	What fans do
CLAP	Clean, as erasers
CLAP	Give the band a hand
CLAP	Storm harbinger
CLAP	Put one's hands together, in a way
CLAP	Show appreciation, in a way

CLAP	Flash follower, weatherwise
CLAP	Thunderpeal
CLAP	Try to induce an encore
CLAP	Keep time, in a way
CLAP	Show encouragement, in a way