Dealer in textile fabrics (6)
(Other definitions for draper that I've seen before include "Fabric seller" , "Retailer of fabrics" , "Seller of textiles" , "He sells fabrics" , "Cloth merchant" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dealer in textile fabrics</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 mercer that I've seen before include "Textile dealer (historical)" , "Old tradesman" , "Dealer in textile fabrics" , "Dealer in textiles or dry goods" , "Dealer in fine cloth" .)