Delicate metal work (8)
I believe the answer is:
filigree
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">delicate metal work</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 filigree that I've seen before include "Delicate ornamentation" , "Ornamental lacework in gold or other metal" , "Delicate work in twisted gold or silver wire" , "decorative work" , "Ornamental work using fine wire" .)