Feature about one racket (5)
I believe the answer is:
noise
'racket' is the definition.
(racket can mean a loud noise)
'feature about one' is the wordplay.
'feature' becomes 'nose' (a facial feature).
'about' means one lot of letters goes inside another.
'one' becomes 'i' (Roman numeral).
'nose' placed around 'i' is 'NOISE'.
(Other definitions for noise that I've seen before include "explosive report, for example" , "Hum" , "Static - sound" , "Unwelcome sound" , "Clamour" .)