Crossword Genius

Work to reduce effect of token performance (10)

Ross

I believe the answer is:

counteract

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

'work to reduce effect' is the definition.
I can't judge whether this defines the answer.

'token performance' is the wordplay.
'token' becomes 'counter' (counter can mean a token or chip).
'performance' becomes 'act' (act is a kind of performance).
'counter'+'act'='COUNTERACT'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for counteract that I've seen before include "Oppose" , "Take steps to neutralise" , "Work against" , "Nullify" , "Tell against (something)" .)

I've seen this clue in The Guardian.
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