Tinker sounded gong (6)
I believe the answer is:
meddle
'tinker' is the definition.
(I've seen this before)
'sounded gong' is the wordplay.
'sounded' shows a homophone (sound like).
'gong' becomes 'medal' (gong can mean a prize or medal).
'medal' is a homophone of 'MEDDLE'.
(Other definitions for meddle that I've seen before include "Interfere in the affairs of others" , "Mess with" , "Intrude in other people's affairs" , "Interfere in people's affairs" , "Interfere or tamper" .)