Sugar bowl marchers (4)
I believe the answer is:
ants
'sugar bowl marchers' 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 "24 [INSECT] s" , "Busy little insects" , "Tiny insects that live in colonies" , "Hard workers" , "Soldiers" .)