Ape's grabbed an awning (6)
I believe the answer is:
canopy
'awning' is the definition.
(I've seen this before)
'ape's grabbed an' is the wordplay.
'ape' becomes 'copy' (synonyms).
'grabbed' is an insertion indicator.
'copy' placed around 'an' is 'CANOPY'.
(Other definitions for canopy that I've seen before include "Overhead covering, on bed or throne say" , "Roof-like shelter" , "Covering over four-poster, etc" , "Pay Con badly for the covering" , "Hanging cover over bed, shopfront, etc" .)