Last bit of fraud uncoils mess (10)

I believe the answer is:

conclusion

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'last bit' is the definition.
'conclusion' can be an answer for 'last' (thesaurus). I am not certain of the 'bit' bit.

'fraud uncoils mess' is the wordplay.
'fraud' becomes 'con' (con is a kind of fraud).
'mess' indicates anagramming the letters.
'uncoils' with letters rearranged gives 'clusion'.
'con'+'clusion'='CONCLUSION'

'of' is the link.

Can you help me to learn more?

(Other definitions for conclusion that I've seen before include "End; decision" , "Ending" .)

I've seen this clue in The Guardian.

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