Primate from Alaska Peninsula (3)
I believe the answer is:
ape
'primate' is the definition.
(large primate)
'from alaska peninsula' is the wordplay.
'from' indicates a hidden word.
'APE' can be found hidden inside 'alaska peninsula'.
(Other definitions for ape that I've seen before include "Take off" , "Copy - primate" , "Mimic the primate" , "Imitate, clumsy person (colloq.)" , "Send up" .)