Beak to imprison one creating clamour (5)
I believe the answer is:
Here is my best explanation:
'clamour' is the definition.
(I've seen this before)
'beak to imprison one' is the wordplay.
'beak' becomes 'nose' (I've seen this before).
'to imprison' means one lot of letters goes inside another.
'one' becomes 'i' (roman numeral).
'nose' enclosing 'i' is 'NOISE'.
'creating' acts as a link.