Crossword Genius

Transportation for men leaving the opera (3)

Ross

I believe the answer is:

car

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

'opera' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for car that I've seen before include "One for the road?" , "Passenger vehicle" , "Hatchback, say?" , "Vehicle carrying vehicles" , "4-wheeled vehicle" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app