Station closure (4)
I believe the answer is:
stop
I believe this is a double definition.
'station' is the first definition.
(thesaurus)
'closure' is the second definition.
('stop' can be a synonym of 'closure')
(Other definitions for stop that I've seen before include "Withhold payment" , "Red light signal" , "Bung" , "high card in bridge" , "Check" .)