Composer butchers works (8)
I believe the answer is:
schubert
'composer' is the definition.
(Franz Schubert, 1797-1828)
'butchers works' is the wordplay.
'works' indicates anagramming the letters (letters worked into a new form).
'butchers' is an anagram of 'SCHUBERT'.
(Other definitions for schubert that I've seen before include "Butchers embrace great German composer" , "Franz -, Austrian composer (Trout Quintet, etc)" , "Butchers (anag) - composer, d. 1828" , "Franz --, Viennese composer" , "Famous man behind bars" .)