Brass that looks like gold (6)
I believe the answer is:
ormolu
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">brass that looks like gold</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ormolu that I've seen before include "Gold-coloured decorative alloy" , "Gold leaf" , "Gold-coloured alloy used to paint furniture" , "Gilt brass" , "Gold-like decoration" .)