Parisian is probing hole? Ring police (7)
I believe the answer is:
gestapo
'police' is the definition.
(Gestapo is an example)
'parisian is probing hole? ring' is the wordplay.
'parisian' becomes 'est' (I've seen this in other clues).
'is probing' indicates putting letters inside (probe can mean to make a hole in).
'hole?' becomes 'gap' (hole is a kind of gap).
'ring' becomes 'o'.
'est' placed into 'gap' is 'gestap'.
'gestap'+'o'='GESTAPO'
(Other definitions for gestapo that I've seen before include "Hitler's secret police" , "State police in Nazi Germany" , "Men in black" , "Geheime Staatspolizei" , "war force" .)