Works caught on — sure success one concludes (8)
I believe the answer is:
concerti
'works' is the definition.
(I have seen 'Musical works' mean 'concerti' so perhaps 'works' could also mean 'concerti')
'caught on sure success one concludes' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'sure success' becomes 'cert'.
'one' becomes 'i' (Roman numeral).
'concludes' is a charade indicator (letters next to each other).
'c'+'on'+'cert'+'i'='CONCERTI'
(Other definitions for concerti that I've seen before include "Works for soloist/orchestra" , "Orchestral pieces featuring solo instrument(s)" , "Music" , "Musical compositions for soloist and orchestra" , "display pieces" .)