Freight in vehicle, move away (5)
I believe the answer is:
cargo
'freight' is the definition.
(synonyms)
'vehicle move away' is the wordplay.
'vehicle' becomes 'car' (car is a kind of vehicle).
'move away' becomes 'go' (to go is to move. I am not sure about the 'away' bit.).
'car'+'go'='CARGO'
'in' is the link.
Can you help me to learn more?
(Other definitions for cargo that I've seen before include "Goods being transported" , "Shipment" , "Goods in transit" , "Stuff on board" , "Goods carried by a large vehicle" .)