Crossword Genius

Simple restaurant requires money before one gets admitted (9)

Ross

I believe the answer is:

brasserie

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

'simple restaurant' is the definition.
(I've seen this before)

'money before one gets admitted' is the wordplay.
I cannot really understand how this works, but
'money' could be 'brass' (I've seen this before) and 'brass' is found in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'before' could be 'ere' (usually literary) and 'ere' is found in the remaining letters.
No letters remain.
This may be the basis of clue (or it may be nonsense).

'requires' is the link.

Can you help me to learn more?

(Other definitions for brasserie that I've seen before include "eating place" , "bar in Paris" , "Where to eat" , "French restaurant" , "Small restaurant serving alcohol as well as food" .)

I've seen this clue in The Telegraph.
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