Chairman's breakdown of chaos theory? (9)
I believe the answer is:
anarchism
'chaos theory?' is the definition.
The definition and answer can be both related to thinking as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'chairman's breakdown' is the wordplay.
'breakdown' indicates an anagram.
'chairmans' anagrammed gives '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" , "Man's chair (anag.)" , "Anti-government ideology" , "Bakunin advocated it" .)