Noise is the wrong result (6)
I believe the answer is:
rustle
'noise' is the definition.
(rustle is a kind of noise)
'the wrong result' is the wordplay.
'the wrong' indicates anagramming the letters.
'result' anagrammed gives 'RUSTLE'.
'is' is the link.
(Other definitions for rustle that I've seen before include "Steal stock" , "take animals" , "Steal 2" , "Result (anag.)" , "The sound of leaves in the wind" .)