Rich do deal that's dodgy (6)
I believe the answer is:
loaded
'rich' is the definition.
(similar in meaning)
'do deal that's dodgy' is the wordplay.
'that's dodgy' is an anagram indicator (a dodgy or wrong order of the letters).
'do'+'deal'='dodeal'
'dodeal' with letters rearranged gives 'LOADED'.
(Other definitions for loaded that I've seen before include "Big Bertha sometimes was" , "Charged with ammunition" , "Filled with a great quantity" , "Slangily very rich - or burdened." , "Weighted" .)