Wear too elaborate clothing (9)
I believe the answer is:
overdress
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wear too elaborate clothing</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for overdress that I've seen before include "Do servers? (anagram)" , "outer garb" , "to look very smart" , "Wear too elaborate clothing" .)