Crossword Genius

Not, you say, a winding passage (6)

Ross

I believe the answer is:

strait

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

'passage' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for strait that I've seen before include "Narrow stretch of water as at Gibraltar" , "Narrow strip of water between two larger ones" , "Narrow stretch of water for artist" , "Narrow waterway" , "Narrow channel of the sea joining two larger bodies of water" .)

Want a hint initially instead of a full solution? Install my app