One is blown to produce sound (5)
I believe the answer is:
noise
'sound' is the definition.
(a noise is a sound)
'one is blown' is the wordplay.
'blown' is an anagram indicator (to blow can mean to disrupt or scatter).
'one'+'is'='oneis'
'oneis' with letters rearranged gives 'NOISE'.
'to produce' acts as a link.
(Other definitions for noise that I've seen before include "Unpleasant sounds" , "Clatter" , "explosive report, for example" , "Din, cacophony" , "Sound of any kind" .)