Kind of coat for a noisy half hour (3)
I believe the answer is:
fur
'kind of coat' is the definition.
'a noisy half hour' is the wordplay.
'a noisy' becomes 'f' (**).
'half' suggests halving the letters.
'hour' halved is 'ur'.
'f'+'ur'='FUR'
'for' acts as a link.
(Other definitions for fur that I've seen before include "Outer skin of animal with hair attached" , "Garment" , "Hairy animal coat" , "Coating formed on tongue of sick person" , "I may fly" .)