Crossword Genius

Exhausted gangster at bar wants ecstasy (3,2)

Ross

I believe the answer is:

all in

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

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

'gangster at bar wants ecstasy' is the wordplay.
I cannot quite understand how this works, but
'gangster' could be 'al' (Al Capone) and 'al' is found in the answer.
'at' could be 'in' and 'in' is present in the answer.
A single letter 'l' remains which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for all in that I've seen before include "Inclusive; tired" , "done" , "Including everything" , "With everything included" , "get tired?" .)

I've seen this clue in The Hindu.
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