Dodgy dealer stocking article should be thrashed (9)
I believe the answer is:
leathered
'thrashed' is the definition.
(I've seen this before)
'dodgy dealer stocking article' is the wordplay.
'dodgy' indicates an anagram (a dodgy or wrong order of the letters).
'stocking' means one lot of letters goes inside another ('stock' can mean 'carry' or 'contain').
'article' becomes 'the' (the definite article in English).
'dealer' is an anagram of 'leared'.
'leared' enclosing 'the' is 'LEATHERED'.
'should be' is the link.
(Other definitions for leathered that I've seen before include "beaten?" , "Thrashed with a strap" .)