A rich man's form of lawlessness (9)

I believe the answer is:

anarchism

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'lawlessness' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

'a rich man's form' is the wordplay.
'form' indicates an anagram (another form of the letters).
'rich'+'mans'='richmans'
'richmans' anagrammed gives 'narchism'.
'a'+'narchism'='ANARCHISM'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for anarchism that I've seen before include "lawless attitude" , "anti-government doctrine" , "Anti-government ideology" , "Man's chair (anag.)" , "Bakunin advocated it" .)

I've seen this clue in The Globe and Mail.

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