Little pests (4)
I believe the answer is:
imps
'little pests' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for imps that I've seen before include "repairs (for a wing)" , "Troublemakers" , "Little devils or scamps" , "Mischievous fairies" , "naughty children" .)