Conspicuous wealth (8)
I believe the answer is:
opulence
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conspicuous wealth</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 opulence that I've seen before include "Fortune" , "Impressive richness" , "Wealth, luxury" , "State of affluence and luxury" , "State of great prosperity" .)