Travel sanctions shortened carriage (3-1-3)
I believe the answer is:
vis-a-vis
'carriage' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for vis-a-vis that I've seen before include "Facing; in relation to" , "Face-to-face" , "With regard to" , "In relation to, as compared with" .)