Head — bread (4)
I believe the answer is:
loaf
This clue is a double definition.
'head' is the first definition.
(slang term for the head)
'bread' is the second definition.
(loaf of bread)
(Other definitions for loaf that I've seen before include "Bum about" , "bloomer, say" , "Half of one is better than none" , "loll" , "Portion of bread" .)