In this you may drink or drive! (6)
I believe the answer is:
This could be a double definition.
'in this you may drink' is the first definition.
The definition suggests a singular noun which matches the answer.
'drive' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'or' acts as a link.
Can you help me to learn more?
(Other definitions for saloon that I've seen before include "Bar room" , "US bar - type of car" , "Car; public room" , "Bar or shape of car" , "An American pub, as in the wild west" .)