Silver or gold (5)
I believe the answer is:
metal
I believe this clue is a double definition.
'silver' is the first definition.
(I've seen this in another clue)
'gold' is the second definition.
(thesaurus)
(Other definitions for metal that I've seen before include "Element eg for road or rail" , "Broken stones" , "barium?" , "lead as one" , "Solid material, a good conductor of heat and electricity" .)