Silver or gold, for example (5)
I believe the answer is:
metal
This clue is a double definition.
'silver' is the first definition.
(I've seen this in another clue)
'gold for example' is the second definition.
(gold is a kind of metal)
(Other definitions for metal that I've seen before include "Musically it can be heavy" , "Lead, for example" , "Maybe copper" , "Element such as iron, copper, zinc etc" , "Lead or iron, perhaps" .)