Cockney gets too hot and goes on binge (8)

I believe the answer is:

overeats

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'cockney gets too hot and' is the definition.
I can't judge whether this defines the answer.

'on binge' is the wordplay.
'on' becomes 'over' (over can mean on top of).
'binge' becomes 'eats' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'over'+'eats'='OVEREATS'

'goes' is the link.

Can you help me to learn more?

I've seen this clue in The Times.

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