Something to part with (4)
I believe the answer is:
comb
'something to part with' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for comb that I've seen before include "Device for tidying one's appearance" , "Untangle (hair)" , "Used to tidy hair" , "Groom the tresses" , "Hair-tidier" .)