Depravity, wickedness (9)
I believe the answer is:
turpitude
This clue is a double definition.
'depravity' is the first definition.
(I know that depravity can be written as turpitude)
'wickedness' is the second definition.
(I've seen this in another clue)
(Other definitions for turpitude that I've seen before include "Depraved or wicked behaviour" , "Depravity, wickedness" , "Baseness, depravity" , "corruption" .)