A bribe can corrupt West Indian (9)
I believe the answer is:
caribbean
'west indian' is the definition.
(I've seen this before)
'a bribe can corrupt' is the wordplay.
'corrupt' is an anagram indicator.
'a'+'bribe'+'can'='abribecan'
'abribecan' is an anagram of 'CARIBBEAN'.
(Other definitions for caribbean that I've seen before include "Part of Atlantic off Central America" , "WI" , "Sea south of the US" , "Sort of islander" , "Atlantic Sea off Central America" .)