Respond to events, and edit duke out (5)
I believe the answer is:
react
'respond' is the definition.
(to react to something is to respond to it)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for react that I've seen before include "Hit back" , "provide an answer" , "Acknowledge" , "Act as opponent" , "Take" .)