Neighbor of Cameroon (4)
I believe the answer is:
chad
'neighbor of cameroon' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for chad that I've seen before include "small piece forcibly removed" , "Punched paper; African nation" , "Large, shallow lake in north central Africa" , "North central African country, capital N'Djamena" , "Feature of controversial election once" .)