Crossword Genius

Drink in best hotel prepared for 2 (4,3,6)

Ross

I believe the answer is:

spin the bottle

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

'prepared for 2' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'drink in best hotel' is the wordplay.
I cannot really understand how this works, but
'drink' could be 'the' (I have seen 'French drink' mean 'the' so perhaps 'drink' could also mean 'the') and 'the' is found in the answer.
'in' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for spin the bottle that I've seen before include "daring game" , "drinking game" , "party game" .)

I've seen this clue in The Guardian.
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