Pyrotechnical sausages? (7)
I believe the answer is:
bangers
'sausages?' is the definition.
(banger is a kind of sausage)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for bangers that I've seen before include "Crates" , "explosives?" , "Loud fireworks" , "Sausages" .)