The Indian food of a prophet in South Africa (6)
I believe the answer is:
samosa
'the indian food' is the definition.
'a prophet in south africa' is the wordplay.
'a prophet' becomes 'amos' (biblical prophet).
'in' is an insertion indicator.
'south africa' becomes 'sa' (abbreviation).
'amos' placed into 'sa' is 'SAMOSA'.
'of' is the link.
(Other definitions for samosa that I've seen before include "Savoury turnover" , "food item" , "Triangular fried pastry" , "exotic snack" , "Indian dish" .)