Rainforest flier (5)
I believe the answer is:
macaw
'rainforest flier' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for macaw that I've seen before include "Chattering cousin of a cockatoo" , "colourful flyer" , "Brightly-coloured parrot" , "Avian chatterbox" , "Largest parrot" .)