Instrument gets locks peeling away (12)
I believe the answer is:
glockenspiel
'instrument' is the definition.
(I know that glockenspiel is a type of percussion instrument)
'locks peeling away' is the wordplay.
'away' indicates an anagram (letters move away from their original places).
'locks'+'peeling'='lockspeeling'
'lockspeeling' anagrammed gives 'GLOCKENSPIEL'.
'gets' acts as a link.
(Other definitions for glockenspiel that I've seen before include "Music producer" , "Bell-like instrument" , "Instrument played with hammers" , "Percussion instrument with metal bars" , "Percussion instrument -- eg pink cellos (anag)" .)