Crossword Genius

Have a meal, dining out, and a drink (3,3,4)

Ross

I believe the answer is:

gin and lime

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

'have a meal dining out' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'a drink' is the wordplay.
I cannot quite understand how this works, but
'drink' could be 'gin' (gin is a kind of drink) and 'gin' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'and' is the link.

Can you help me to learn more?

I've seen this clue in the Evening Standard.
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