Crossword Genius

A number sitting in boozy US diner? (7)

Ross

I believe the answer is:

beanery

'us diner?' is the definition.
(US term for a cheap restaurant)

'a number sitting in boozy' is the wordplay.
'number' becomes 'n' (n can represent any number).
'sitting in' is an insertion indicator.
'boozy' becomes 'beery' (both can mean drunk).
'a'+'n'='an'
'an' inserted within 'beery' is 'BEANERY'.

(Another definition for beanery that I've seen is " restaurant that's cheap".)

I've seen this clue in The Guardian.
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