Type of ape (5)
I believe the answer is:
chimp
'type of ape' is the definition.
This is all the clue.
(Other definitions for chimp that I've seen before include "Cheeky primate" , "Anthropoid ape" , "Creature" , "Arboreal ape from equatorial Africa (abbr)" , "Ape (colloq.)" .)