Cut brace loudly (4)
I believe the answer is:
pare
'cut' is the definition.
(paring is a kind of cutting)
'brace loudly' is the wordplay.
'brace' becomes 'pair' (a brace is a pair of something).
'loudly' shows a homophone (sound like) (when spoken - not silently).
'pair' is a homophone of 'PARE'.
(Other definitions for pare that I've seen before include "Remove the skin from" , "Cut down gradually" , "Shave or peel" , "Trim by slicing" , "Strip the skin from" .)