Primate within tapestry (3)
I believe the answer is:
ape
'primate' is the definition.
(large primate)
'within tapestry' is the wordplay.
'within' indicates a hidden word.
'APE' can be found hidden inside 'tapestry'.
(Other definitions for ape that I've seen before include "Anthropoid primate" , "Simulate" , "Imitate like primate" , "Mimic the primate" , "Large primate" .)