Bar a popular kind of transport (6)
I believe the answer is:
saloon
'bar' is the definition.
(I know that bar can be written as saloon)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for saloon that I've seen before include "Bar or shape of car" , "Large public room" , "Car with separate boot" , "Bar room" , "Pub room" .)