Covering for the wrist (4)
I believe the answer is:
cuff
'covering for the wrist' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for cuff that I've seen before include "Smack; end of shirt sleeve" , "Wrist end of sleeve" , "Blow; end of sleeve" , "Strike" , "Hit with the flat of the hand" .)