Importer of goods without paying duties (8)
I believe the answer is:
smuggler
'importer of goods without paying duties' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for smuggler that I've seen before include "Transporter of illegal goods" , "Importer of goods without paying duties" , "Illegal importer" , "Criminal" , "He tries to evade customs barriers" .)