River fish's name in part of Africa (6)
I believe the answer is:
rwanda
'part of africa' is the definition.
(I know that Rwanda is part of Africa)
'river fish's name' is the wordplay.
'river' becomes 'r' (abbreviation for river).
'fish's name' becomes 'Wanda' (as in the film A Fish Called Wanda).
'r'+'wanda'='RWANDA'
'in' is the link.
(Other definitions for rwanda that I've seen before include "Hutu and Tutsi country" , "Language" , "African state" , "Kigali's country" , "African country, capital Kigali" .)