Work or strike? (6)
I believe the answer is:
action
This clue is a double definition.
'work' is the first definition.
(thesaurus)
'strike?' is the second definition.
(strike is a kind of action)
'or' is the link.
(Other definitions for action that I've seen before include "SECOND PART OF 15" , "skirmish" , "Battle (in the law courts?)" , "The process of doing something" , "Deed, maybe battle" .)