Enid may have dinner (4)

I believe the answer is:

dine

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'have dinner' is the definition.
(synonyms)

'enid' is the wordplay.
'enid' can be anagrammed to 'DINE'.
However, I am unsure how this is indicated.

'may' is the link.

Can you help me to learn more?

(Other definitions for dine that I've seen before include "Eat main meal" , "Take meal" , "Eat dinner" , "Have an evening meal" , "Have supper" .)

I've seen this clue in the Evening Standard.

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