Highly conductive metal (6)
I believe the answer is:
copper
(Other definitions for copper that I've seen before include "PC" , "Busy" , "English policeman" , "Reddish metal of a penny" , "Metallic element for a British policeman" .)
I believe the answer is:
copper
(Other definitions for copper that I've seen before include "PC" , "Busy" , "English policeman" , "Reddish metal of a penny" , "Metallic element for a British policeman" .)