Narrow road or path (4)
I believe the answer is:
lane
I believe this clue is a double definition.
'narrow road' is the first definition.
(I've seen this before)
'path' is the second definition.
(I know that lane is a type of path)
(Other definitions for lane that I've seen before include "Narrow street" , "Rough path" , "way" , "Byroad" , "Single line of traffic" .)