Kid may be very loud after tea (5)
I believe the answer is:
chaff
'kid' is the definition.
('chaff' can be a synonym of 'kid')
'very loud after tea' is the wordplay.
'very loud' becomes 'ff' (musical abbreviation).
'after' means one lot of letters go next to another.
'tea' becomes 'cha' (cha is a type of tea).
'ff' after 'cha' is 'CHAFF'.
'may be' is the link.
(Other definitions for chaff that I've seen before include "Shucks" , "It's separated from wheat during threshing" , "Husks - jokes" , "Corn-husks separated from the grain" , "Separated grain husks" .)