Travel with vehicle for passengers or freight (5)
I believe the answer is:
cargo
'freight' is the definition.
(synonyms)
'travel with vehicle for' is the wordplay.
'travel' becomes 'go' (synonyms).
'with' means one lot of letters go next to another.
'vehicle for' becomes 'car' (I've seen this in other clues).
'go' after 'car' is 'CARGO'.
'passengers or' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for cargo that I've seen before include "Consignment" , "Ship's freight" , "Shipment" , "stuff to be carried by ship" , "What gets carried" .)