Chip off the old bread (5)
I believe the answer is:
crumb
'chip off the old bread' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for crumb that I've seen before include "Morsel of bread" , "Very small quantity of something, especially food" , "Tiny piece of bread or cake" , "tiny amount" , "Just a little bit" .)