Kite appendage (4)
I believe the answer is:
tail
'kite appendage' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tail that I've seen before include "Caudal fin" , "Trail (behind comet)" , "Last, rear, part" , "Comet's luminous trail" , "Follow the caudal appendage" .)