Break for something to eat (4)
I believe the answer is:
chip
This clue is a double definition.
'break' is the first definition.
(chip is a kind of break)
'something to eat' is the second definition.
(chip is a kind of food)
'for' is the link.
(Other definitions for chip that I've seen before include "Small fragment, off the old block possibly" , "Piece of wood, potato, or silicon" , "Small piece of wood" , "Off the old block, that's junior" , "Flaw" .)