Desert in North Africa (6)
I believe the answer is:
sahara
'desert in north africa' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sahara that I've seen before include "World's largest desert" , "Great African desert" , "About 3,500,000 square miles of Africa" , "Hottest desert" , "Uncultivated region of north Africa" .)