Ship that carried the Golden Fleece (4)
I believe the answer is:
argo
'ship that carried the golden fleece' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for argo that I've seen before include "Ship in which Jason searched for the Golden Fleece" , "Ship Jason sailed to find the Golden Fleece" , "Constellation; ship" , "Jason's boat" , "Name of ship sailed by Jason in search of the Golden Fleece" .)