Stuff carried in cold Greek ship (5)
I believe the answer is:
cargo
'ship' is the definition.
(cargo ship is a kind of ship)
'stuff carried in cold greek' is the wordplay.
I cannot really see how this works, but
'cold' could be 'c' (eg on taps) and 'c' is present in the answer.
'greek' could be 'g' (philological abbreviation) and 'g' is found in the answer.
The remaining letters 'aro' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for cargo that I've seen before include "stuff to be carried by ship" , "Baggage" , "Stuff on board" , "This taken on board" , "Goods in transit" .)