Crossword Genius

City where the carioca may have started? (5)

Ross

I believe the answer is:

cairo

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

'city' is the definition.
(Cairo is an example)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for cairo that I've seen before include "Egypt's capital" , "Egyptian capital" , "Al Qahira" , "African city" , "Port upstream from the Nile delta" .)

I've seen this clue in the Evening Standard.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.