Noise from bat (6)
I believe the answer is:
racket
I believe this is a double definition.
'noise' is the first definition.
(I know that noise can be written as racket)
'bat' is the second definition.
(I've seen this before)
'from' acts as a link.
(Other definitions for racket that I've seen before include "Loud unpleasant noise" , "Unpleasant noise, bat" , "Din; snowshoe" , "Loud discordant noise" , "sporting gear ..." .)