African leaders in some other African country (6)
I believe the answer is:
somali
'african' is the definition.
(Somali is an example)
'leaders in some other african country' is the wordplay.
'leaders in' indicates taking the first letters.
'african country' becomes 'mali' (country in Africa).
The first letters of 'some other' is 'so'.
'so'+'mali'='SOMALI'
(Other definitions for somali that I've seen before include "From a part of northeast Africa" , "So Liam could be a man from NE Africa" , "From a country in the Horn of Africa" , "East African national" , "1 [GCSE]" .)