Historic British colony in a stormy part of the Atlantic (5)
I believe the answer is:
natal
'part of the atlantic' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Maybe you can see a link between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for natal that I've seen before include "Connected to birth" , "Colony once" , "old province" , "Province at one time" , "Relating to deliveries" .)