Performs shoots (8)
I believe the answer is:
executes
This clue is a double definition.
'performs' is the first definition.
('execute' can be a synonym of 'perform')
'shoots' is the second definition.
(shooting is a way of executing people)
(Other definitions for executes that I've seen before include "Carries out something" , "Puts (a plan) into effect" , "Carries out and puts to death" , "Does away with" , "Carries out and legally kills" .)