Law enforcer (9)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
policeman
'law enforcer' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for policeman that I've seen before include "Law enforcer" , "Copper" , "Constable" , "officer" , "He's responsible for the maintenance of public order" .)