Tucks into some meat sandwiches (4)

I believe the answer is:

eats

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'tucks' is the definition.
Although both the answer and definition are verbs in their -s form, I can't see how they can define each other.

'into some meat sandwiches' is the wordplay.
'into' indicates the answer is hidden within the clue.
'EATS' can be found hidden inside 'some meat sandwiches'.

Can you help me to learn more?

(Other definitions for eats that I've seen before include "Munches" , "worrying" , "Seat (anag.)" , "corrodes" , "Scoff" .)

I've seen this clue in The Sun.

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