Crossword Genius

Bob finally exits wide street (4)

Ross

I believe the answer is:

road

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

'street' is the definition.
(I know that street can be written as road)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for road that I've seen before include "Route travelled by sea" , "Way travelled by boat" , "See 10" , "Highway or byway" , "See 2" .)

I've seen this clue in The Sun.
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