Coat rack part (3)
I believe the answer is:
peg
'coat rack part' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for peg that I've seen before include "Clothes line pin" , "The girl to hang your hat on" , "Projecting pin" , "Wooden or plastic pin for hanging clothes" , "This leg is artificial" .)