All-out action? (7,6)
I believe the answer is:
general strike
'all-out action?' is the definition.
The definition suggests a singular noun which matches the answer.
'action?' is the wordplay.
I cannot quite understand how this works, but
'action?' could be 'strike' (strike is a kind of action) and 'strike' is present in the answer.
The remaining letters 'general' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for general strike that I've seen before include "Widespread industrial action" , "National work stoppage" , "Everybody out!" , "nationwide walkout" , "1926 withdrawal of labour" .)