Passage underground (6)
I believe the answer is:
subway
(Other definitions for subway that I've seen before include "New York city trains" , "Pedestrian way beneath a road" , "American tube" , "New York railway" , "NY underground" .)
I believe the answer is:
subway
(Other definitions for subway that I've seen before include "New York city trains" , "Pedestrian way beneath a road" , "American tube" , "New York railway" , "NY underground" .)