Mixed trades so represented (8)
I believe the answer is:
assorted
'mixed' is the definition.
(I know that mixed can be written as assorted)
'trades so represented' is the wordplay.
'represented' indicates an anagram.
'trades'+'so'='tradesso'
'tradesso' anagrammed gives 'ASSORTED'.
(Other definitions for assorted that I've seen before include "Rod's seat (anag)" , "Motley" , "Of different kinds put together, like sweets" , "Odd-shaped" , "Classified" .)