Consumes six deliveries of food? (8)

I believe the answer is:

overeats

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

'consumes' is the definition.
The definition and answer can be both related to consumption as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?

'six deliveries of food?' is the wordplay.
'six deliveries' becomes 'over' (cricket).
'of food?' 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'

Can you help me to learn more?

I've seen this clue in the Evening Standard.

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