Performed as an actor (3)
I believe the answer is:
did
'performed' is the definition.
('do' can be a synonym of 'perform')
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for did that I've seen before include "was satisfactory" , "Swindled" , "Achieved; cheated" , "Accomplished" , "Performed an action" .)