Entertainer can depart after performing (3-6)
I believe the answer is:
tap-dancer
'entertainer' is the definition.
(tap dancer is a kind of entertainer)
'can depart after performing' is the wordplay.
'after performing' indicates anagramming the letters.
'can'+'depart'='candepart'
'candepart' with letters rearranged gives 'TAP-DANCER'.
(Other definitions for tap-dancer that I've seen before include "Light-footed individual" , "one tripping over the sink?" , "Astaire or Kelly, for example" .)