Ark skipper (4)
I believe the answer is:
noah
'ark skipper' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for noah that I've seen before include "A very early sailor" , "The first Arkwright!" , "Early boatman" , "Sailor who ran aground on Mount Ararat" , "Biblical skipper during the Flood" .)