Crossword Genius

Lodge with crowd approaching hotel with banker (9)

Ross

I believe the answer is:

gatehouse

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

'lodge' is the definition.
(I know that lodge can be written as gatehouse)

'crowd approaching hotel with banker' is the wordplay.
I cannot really see how this works, but
'crowd' could be 'gate' (gate can refer to the crowd for a sporting event) and 'gate' is found in the answer.
'hotel' could be 'h' (phonetic alphabet: alpha, bravo, charlie etc.) and 'h' is found in the answer.
The remaining letters 'ouse' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'with' acts as a link.

Can you help me to learn more?

(Other definitions for gatehouse that I've seen before include "Building by entrance" , "porter's place?" , "It guards entry to an estate" , "underneath Barbican" , "Lodge" .)

I've seen this clue in The Telegraph.
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