Caribbean sort to sight whaler up north (8)

'caribbean sort' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'sight whaler up north' is the wordplay.
'sight' becomes 'aim' (I've seen this in another clue).
'whaler' becomes 'ahab' (I have seen 'Fictional whaler ' mean 'ahab' so perhaps 'whaler' could also mean 'ahab').
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'north' becomes 'N' (abbreviation).
'aim'+'ahab'='aimahab'
'aimahab' backwards is 'bahamia'.
'bahamia'+'n'='BAHAMIAN'

'to' acts as a link.

Can you help me to learn more?