Sound name adopted by fashion designer (7)
I believe the answer is:
channel
'sound' is the definition.
('channel' can be a synonym of 'sound')
'name adopted by fashion designer' is the wordplay.
I cannot really understand how this works, but
'name' could be 'anne' (I've seen this before) and 'anne' is present in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for channel that I've seen before include "Navigable part of a waterway" , "Navigable passage" , "TV station; direct towards an end" , "Length of water; radio station" , "Narrow body of water between two land masses" .)