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Wiping out born batsman once focus goes (8)

Ross

I believe the answer is:

negating

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'focus goes' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.

'wiping out born batsman' is the wordplay.
I cannot really see how this works, but
'born' could be 'ne' ('born' in French - used to indicate a birth name) and 'ne' is present in the answer.
The remaining letters 'gating' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

'once' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.
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