Saab finally exits wide motorway (4)
I believe the answer is:
road
'motorway' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for road that I've seen before include "Parting guests used to take 'one for the --'" , "For place to anchor" , "See 2" , "See 10" , "Highway or byway" .)