Jane Goodall subject (5)
I believe the answer is:
chimp
'jane goodall subject' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for chimp that I've seen before include "Cheeky primate" , "Anthropoid ape" , "A great ape (abbr.)" , "Arboreal ape from equatorial Africa (abbr)" , "Ape (colloq.)" .)