Sound one gets in prominent feature (5)
I believe the answer is:
noise
'sound' is the definition.
(a noise is a sound)
'one gets in prominent feature' is the wordplay.
'one gets' becomes 'is' (I've seen this in other clues).
'in' is an insertion indicator.
'prominent feature' becomes 'noe' (I can't explain this - if you can you should believe this answer much more).
'is' going into 'noe' is 'NOISE'.
Can you help me to learn more?
(Other definitions for noise that I've seen before include "Racket, din" , "Unpleasant sounds" , "Sound, disagreeable perhaps" , "Confused sounds" , "Loud sound; bruit" .)