Gets near corrupt police officer (8)
I believe the answer is:
sergeant
'police officer' is the definition.
(I've seen this before)
'gets near corrupt' is the wordplay.
'corrupt' indicates anagramming the letters.
'gets'+'near'='getsnear'
'getsnear' is an anagram of 'SERGEANT'.
(Other definitions for sergeant that I've seen before include "Soldier and lover in Hardy novel" , "Military rank" , "Troy" , "Pepper, say" , "Estrange from junior army officer" .)