Dodgy VAT agenda brings profit (9)
I believe the answer is:
advantage
'profit' is the definition.
(I've seen this before)
'dodgy vat agenda' is the wordplay.
'dodgy' indicates an anagram (a dodgy or wrong order of the letters).
'vat'+'agenda'='vatagenda'
'vatagenda' with letters rearranged gives 'ADVANTAGE'.
'brings' acts as a link.
(Other definitions for advantage that I've seen before include "Profit, tennis score" , "First point scored after deuce in tennis" , "Edge, head start" , "Superior or more favourable position" , "Benefit - superior position" .)