How to take a seat for dinner, maybe (4)

I believe the answer is:

eats

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

'dinner maybe' is the definition.
(I know that dinner is a type of meal)

'how to take a seat' is the wordplay.
'seat' anagrams to 'EATS'.
However, I'm unsure how the anagram is indicated.

'for' is the link.

Can you help me to learn more?

(Other definitions for eats that I've seen before include "Common grub" , "Sate (anag.)" , "Commonly, they eliminate" , "Swallows food" , "Takes nourishment" .)

I've seen this clue in the Evening Standard.

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