Some dive a little lower for food (4)
I believe the answer is:
veal
'for food?' is the definition.
(veal is a kind of food)
'some dive a little lower' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'VEAL' is hidden within 'dive a little lower'.
(Other definitions for veal that I've seen before include "cuisine" , "meat, R [ROSE] maybe" , "Calf's flesh as food" , "Calves' flesh as food" , "Type of meat" .)