Meat workers (8)
I believe the answer is:
butchers
'meat workers' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for butchers that I've seen before include "Animal killers in Schubert composition" , "Meat-workers" , "kills cruelly" , "Sellers of meat (look!)" , "Look (cockney slang) -- Smithfield workers" .)