Allies, after uprising, shot dead (4-4)
I believe the answer is:
slap-bang
'dead' is the definition.
Both the answer and definition are adverbs. Maybe you can see an association between them that I can't see?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for slap-bang that I've seen before include "Suddenly - directly" , "Absolutely (in the middle)" , "All at once - violently" , "right?" .)