Does impressions of (4)
I believe the answer is:
apes
'does impressions of' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for apes that I've seen before include "Parrots" , "Peas (anag)" , "Mimics like primates" , "Copies the primates?" , "Large primates" .)