Trade association (5)
I believe the answer is:
guild
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">trade association</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 guild that I've seen before include "Group of craftsmen" , "Crafstmen's association" , "brotherhood" , "Craftsmen's or merchants' association" , "Alliance" .)