Crossword Genius

Deed used in legal battle (6)

Ross

I believe the answer is:

action

I'm a little stuck... Click here to teach me more about this clue!

This might be a double definition.

'deed' is the first definition.
(I've seen this before)

'legal battle' is the second definition.
'action' can be an answer for 'battle' (military action). I am unsure of the 'legal' bit.

'used in' acts as a link.

Can you help me to learn more?

(Other definitions for action that I've seen before include "Not CIA (anag)" , "Deed or legal proceeding" , "exploit" , "''. . . . . . speaks louder than words'' (6)" , "Operation; engagement" .)

I've seen this clue in The Sun.
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