Tamper with gong that's audible? (6)
I believe the answer is:
meddle
'tamper' is the definition.
(I know that tamper can be written as meddle)
'gong that's audible?' is the wordplay.
'gong' becomes 'medal' (gong can mean a prize or medal).
'that's audible?' shows a homophone (sound like) (I've seen 'audible' mean this).
'medal' sounds like 'MEDDLE'.
'with' is the link.
(Other definitions for meddle that I've seen before include "Interfere unnecessarily" , "Intrude, interfere" , "Interfere, butt in" , "Interfere in someone else's business" , "Stick one's oar in" .)