Imitation gold (6)
I believe the answer is:
ormolu
'imitation gold' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ormolu that I've seen before include "Something decorative" , "Gilt brass" , "Alloy for gilding" , "Gold-coloured alloy used to decorate furniture" , "Gold-coloured alloy used in ornamentation" .)