Broken chord disrupted opera gig (8)
I believe the answer is:
arpeggio
'broken chord' is the definition.
(I've seen this in another clue)
'disrupted opera gig' is the wordplay.
'disrupted' indicates an anagram.
'opera'+'gig'='operagig'
'operagig' is an anagram of 'ARPEGGIO'.
(Other definitions for arpeggio that I've seen before include "Opera gig (anagram)" , "Pianist's exercise" , "Split chord" , "Chord played spaced out" , "Notes of a chord sounded separately" .)