Caged talker (4)
I believe the answer is:
myna
'caged talker' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for myna that I've seen before include "Asian bird" , "Asiatic bird imitating human speech" , "Talkative bird" , "Speech-mimicking bird" , "Bird good at mimicry" .)