Breaking the law to get riches (6)
I believe the answer is:
wealth
'riches' is the definition.
('wealth' can be a synonym of 'riches')
'breaking the law' is the wordplay.
'breaking' indicates anagramming the letters.
'the'+'law'='thelaw'
'thelaw' is an anagram of 'WEALTH'.
'to get' is the link.
(Other definitions for wealth that I've seen before include "'Riches, affluence (6)'" , "was common under Cromwell" , "Riches, worldly goods" , "Possessions and resources" , "State of luxury" .)