Get wrong note out with this instrument (5)
I believe the answer is:
bugle
'this instrument' is the definition.
(bugle is a kind of instrument)
'get wrong note out' is the wordplay.
'get wrong' becomes 'bungle' (to bungle something is to do it wrong).
'note' becomes 'n' (abbreviation).
'out' suggests deleting specific letters.
'bungle' with 'n' taken away is 'BUGLE'.
'with' is the link.
(Other definitions for bugle that I've seen before include "Part of brass" , "It calls to soldiers" , "one may have blown it!" , "Trumpet-like instrument" , "'Last Post' instrument" .)