Old Greek vessel found in Cheddar Gorge (4)
I believe the answer is:
argo
'old greek vessel' is the definition.
'argo' can be an answer for 'vessel' (ship in Greek myth). I'm not certain of the 'old greek' bit.
'in cheddar gorge' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ARGO' can be found hidden inside 'cheddar gorge'.
'found' is the link.
Can you help me to learn more?
(Other definitions for argo that I've seen before include "Constellation; ship" , "Stars once recognised in the south" , "Ship involved in the quest for the Golden Fleece" , "Ship used by Jason in his search for the Golden Fleece" , "Ship Jason sailed to find the Golden Fleece" .)