Coin word for policeman? (6)
I believe the answer is:
copper
This clue is a double definition.
'coin' is the first definition.
(copper is a kind of coin)
'word for policeman?' is the second definition.
(informal term for a police officer)
(Other definitions for copper that I've seen before include "Ductile metal" , "Part of force" , "Coin, policeman or metallic element" , "detector?" , "Reddish metal of a penny" .)