South African part of the Atlantic, possibly (5)
I believe the answer is:
natal
'south' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for natal that I've seen before include "Like a seat" , "To do with birth - in S Africa?" , "Colony once" , "former SA province" , "South African place" .)