Police officer gets near disturbance (8)
I believe the answer is:
sergeant
'police officer' is the definition.
(I've seen this before)
'gets near disturbance' is the wordplay.
'disturbance' indicates an anagram.
'gets'+'near'='getsnear'
'getsnear' is an anagram of 'SERGEANT'.
(Other definitions for sergeant that I've seen before include "Gets near (anag) -- NCO" , "Police rank" , "Troy" , "Military rank" , "Pepper, say" .)