Is in the balance when you fight (6)

I believe the answer is:

resist

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'you fight' is the definition.
'resist' can be an answer for 'fight' (thesaurus). I am unsure of the 'you' bit.

'is in the balance' is the wordplay.
'in the' indicates putting letters inside.
'balance' becomes 'rest' (I've seen this before).
'is' placed inside 'rest' is 'RESIST'.

'when' is the link.

Can you help me to learn more?

(Other definitions for resist that I've seen before include "Forgo" , "Don't give in" , "Hold out for sister" , "Take stand against, oppose" , "Put up opposition, defy" .)

I've seen this clue in the Evening Standard.

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