Travel partners occupying property (7)
I believe the answer is:
transit
'travel' is the definition.
(transit is a kind of travel)
'partners occupying property' is the wordplay.
'partners' becomes 'ns' (North and South are partners in the game bridge).
'occupying' means one lot of letters goes inside another.
'property' becomes 'trait' (I can't explain this - if you can you should believe this answer much more).
'ns' inserted inside 'trait' is 'TRANSIT'.
Can you help me to learn more?
(Other definitions for transit that I've seen before include "Pass across" , "The process of going or passing - sic . . . . . . . gloria mundi" , "The act of carrying from one place to another" , "Start in for the process of being conveyed" , "Shipment from A to B" .)