Drive away quietly during the dance (5)
I believe the answer is:
repel
'drive away' is the definition.
(to repel is to drive away)
'quietly during the dance' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'during' means one lot of letters goes inside another.
'the dance' becomes 'reel' (reel is a kind of dance).
'p' going within 'reel' is 'REPEL'.
(Other definitions for repel that I've seen before include "Drive away like leper" , "Fend off" , "Drive back like leper" , "Drive back or disgust" , "Spurn" .)