What hotel may offer for very few people, or a number (3,3,3)
I believe the answer is:
tea for two
'number' is the definition.
(I have seen 'Musical number' mean 'tea for two' so perhaps 'number' could also mean 'tea for two')
'what hotel may offer for very few people or a' is the wordplay.
I cannot quite see how this works, but
'or' is present in the answer.
'a' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tea for two that I've seen before include "Air" , "Song from musical No, No, Nanette" , "Musical number" , "Popular 1925 song (for afternoon drinking companions?)" .)