Foreign articles move in tunnel (9)
I believe the answer is:
underpass
'tunnel' is the definition.
(I know that underpass is a type of tunnel)
'foreign articles move' is the wordplay.
'foreign articles' becomes 'under'.
'move' becomes 'pass' (passing is a kind of moving).
'under'+'pass'='UNDERPASS'
'in' is the link.
(Other definitions for underpass that I've seen before include "Tunnel beneath a road" , "way below the level of others making progress" , "way across road?" .)