Imitates monkeys? (4)
I believe the answer is:
apes
This clue is a double definition.
'imitates' is the first definition.
('ape' can be a synonym of 'imitate')
'monkeys?' is the second definition.
(I've seen this in other clues)
(Other definitions for apes that I've seen before include "Species of primate" , "Mimics like primates" , "Imitates like primates" , "Parrots" , "Peas (anag)" .)