Name talkative bird in short comment (8)
I believe the answer is:
nominate
'name' is the definition.
'talkative bird in short comment' is the wordplay.
'talkative bird' becomes 'mina' (bird which can imitate human speech).
'in' means one lot of letters goes inside another.
'short comment' becomes 'note'.
'mina' placed inside 'note' is 'NOMINATE'.
(Other definitions for nominate that I've seen before include "Propose for office" , "Propose - a mention (anag)" , "Choose" , "Propose - name" , "Specify (person for job)" .)