Arrangement for auctioning rubbish (13)
I believe the answer is:
configuration
'arrangement' is the definition.
(configuration is a kind of arrangement)
'for auctioning rubbish' is the wordplay.
'rubbish' indicates an anagram (a poor quality or rubbish spelling of the letters).
'for'+'auctioning'='forauctioning'
'forauctioning' anagrammed gives 'CONFIGURATION'.
(Other definitions for configuration that I've seen before include "Arrangement (of parts)" , "Composition" .)