Realises in audition for feature (4)

I believe the answer is:
nose
'for feature' is the definition.
(a facial feature)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for nose that I've seen before include "Small margin of victory" , "Proboscis" , "Organ of face" , "Informer" , "Asian wind instrument -- use Teflon (anag)" .)
