Cameroon neighbor (5)
I believe the answer is:
gabon
'cameroon neighbor' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gabon that I've seen before include "W. African republic" , "French spoken here" , "African country, capital Libreville" , "W. African country" , "Republic on the west coast of Africa" .)