Explorer of the Canadian coast (5)
I believe the answer is:
cabot
'explorer of the canadian coast' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cabot that I've seen before include "Name of two Italian navigator-explorers of the New World, father John and son Sebastian" , "Italian explorer (father or son)" , "Sebastian & John -, early navigators" , "Italian leader of the 1497 English expedition to the east coast of today's Canada" , "Sebastian -, navigator" .)