Crossword Genius

Cheat adjusted the scoreboard at change of ends? (3,3,4,2)

Ross

I believe the answer is:

put one over on

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'cheat' is the definition.
Although both the answer and definition are verbs in their base form, I can't understand how they can define each other.

'adjusted the scoreboard at change of ends?' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
'at' could be 'on' (location) and 'on' is found within the answer.
'of' could be 'o' and 'o' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Independent.
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