Pantry problem (4)
I believe the answer is:
ants
'pantry problem' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ants that I've seen before include "workers found returning" , "Busy little insects" , "24 [INSECT] s" , "Emmets" , "Tiny insects that live in colonies" .)