Crossword Genius

Wait and offer to buy everyone a pint? (5,6)

Ross

I believe the answer is:

stand around

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

'offer to buy everyone a pint?' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'wait and' is the wordplay.
I cannot quite see how this works, but
an anagram of 'and' is 'nda' which is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Telegraph.
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