Troubled reign current in West Africa (5)
I believe the answer is:
niger
'current in west africa' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'troubled reign' is the wordplay.
'troubled' indicates anagramming the letters.
'reign' is an anagram of 'NIGER'.
Can you help me to learn more?
(Other definitions for niger that I've seen before include "Land-locked country and river of W Africa" , "foreign banker" , "African river flowing into the South Atlantic" , "West African river and country" , "River of West Africa" .)