Foolishly imitative (5)
I believe the answer is:
apish
'foolishly imitative' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for apish that I've seen before include "Foolish; simian" , "Foppish" , "Stupid" , "Foolish; like a monkey" , "Silly" .)