Peel fruit noisily (4)
I believe the answer is:
pare
'peel' is the definition.
(I've seen this before)
'fruit noisily' is the wordplay.
'fruit' becomes 'pear' (pear is a kind of fruit).
'noisily' indicates a 'sounds like' (homophone) clue.
'pear' is a homophone of 'PARE'.
(Other definitions for pare that I've seen before include "Remove the skin from" , "Shave, say, pencil" , "Trim off in layers" , "Shave or peel" , "Decrease gradually" .)