Kind of eccentric, messy swindle (10,5)

I believe the answer is:

confidence trick

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'swindle' is the definition.
Both the definition and answer are singular nouns.
Maybe they are linked in a way I don't understand?

'kind of eccentric messy' is the wordplay.
'messy' indicates anagramming the letters.
'kind'+'of'+'eccentric'='kindofeccentric'
'kindofeccentric' is an anagram of 'CONFIDENCE TRICK'.

Can you help me to learn more?

(Other definitions for confidence trick that I've seen before include "sting" , "fraud" , "Deception" , "scam" .)

I've seen this clue in the Sydney Morning Herald.

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