Oblivious in Cameroun — a war expected (7)
I believe the answer is:
unaware
'oblivious' is the definition.
('unaware' can be similar in meaning to 'oblivious')
'in cameroun a war expected' is the wordplay.
'in' indicates a hidden word.
'UNAWARE' can be found hidden inside 'cameroun a war expected'.
(Other definitions for unaware that I've seen before include "Not informed - ignorant (of)" , "Ignorant - unenlightened" , "Not having knowledge or realisation" , "Unwitting, not knowing" , "In the dark" .)