Wealth when converted into legislation (3,3)
I believe the answer is:
the law
'legislation' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'wealth when converted' is the wordplay.
'when converted' is an anagram indicator (I've seen this in other clues).
'wealth' with letters rearranged gives 'THE LAW'.
'into' is the link.
Can you help me to learn more?
(Other definitions for the law that I've seen before include "police" , "What protesters may" .)