Food worries (4)
I believe the answer is:
eats
This clue is a double definition.
'food' is the first definition.
(eats is a kind of food)
'worries' is the second definition.
(eating is a kind of worrying)
(Other definitions for eats that I've seen before include "Commonly, they eliminate" , "Scoffs" , "Seat (anag.)" , "Comestibles" , "Gets tucked into the cake" .)