Crossword Genius

Hotel with everything in one room (4)

Ross

I believe the answer is:

hall

'one room' is the definition.
(hall is a kind of room)

'hotel with everything' is the wordplay.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'with' is a charade indicator (letters next to each other).
'everything' becomes 'all' (all things).
'h'+'all'='HALL'

'in' acts as a link.

(Other definitions for hall that I've seen before include "See 21" , "Entrance area" , "Large public building" , "Building used for public assembly" , "See 1" .)

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