Topography (7)
I believe the answer is:
terrain
'topography' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for terrain that I've seen before include "Type of countryside" , "Trainer (anag) - land" , "Tract of land of a specific character" , "Tract of ground with specific characteristics" , "Tract of land with prevailing characteristic" .)