Bearing the cost of transport (8)
I believe the answer is:
carriage
This might be a double definition.
'bearing the cost' is the first definition.
'carriage' can be an answer for 'bearing' (someone's stance or posture). I am not sure about the 'the cost' bit.
'transport' is the second definition.
(carriage is a kind of transport)
'of' is the link.
Can you help me to learn more?
(Other definitions for carriage that I've seen before include "Posture or train compartment" , "Section of a train" , "Buggy" , "Railway passenger coach" , "Vehicle - bearing" .)