Sausage black — outrage! (6)
I believe the answer is:
banger
'sausage' is the definition.
(banger is a kind of sausage)
'black outrage' is the wordplay.
'black' becomes 'b' (as in pencil classifications).
'outrage' becomes 'anger' (I've seen this in other clues).
'b'+'anger'='BANGER'
(Other definitions for banger that I've seen before include "Sausage (Inf)" , "It might just drive" , "Old and unreliable car" , "Noisy old car or slangy sausage" , "Old rattling car or slang sausage" .)