Feature includes 'North and South' passage (7)
I believe the answer is:
transit
'passage' is the definition.
('transit' can be a synonym of 'passage')
'feature includes north and south' is the wordplay.
'feature' becomes 'trait' (I've seen this before**).
'includes' is an insertion indicator.
'north' becomes 'n' ('N' can be a synonym of 'north').
'and' says to put letters next to each other.
'south' becomes 's' ('S' can be a synonym of 'south').
'n'+'s'='ns'
'trait' going around 'ns' is 'TRANSIT'.
(Other definitions for transit that I've seen before include "The process of going or conveying" , "Pass across" , "Haulage" , "Passage of heavenly body" , "Conveyance of goods or people - tin star (anag)" .)