Darn revolutionary clutches snake, turning fallible (8)

I believe the answer is:

weakness

I'm a little stuck... Click here to teach me more about this clue!

'darn revolutionary clutches snake turning fallible' is the definition.
I can't judge whether this defines the answer.

'darn revolutionary clutches snake turning' is the wordplay.
'darn' becomes 'sew' (I've seen this in another clue).
'revolutionary' shows that the letters should be reversed in order.
'clutches' is an insertion indicator.
'turning' indicates anagramming the letters.
'sew' back-to-front is 'wes'.
'snake' anagrammed gives 'aknes'.
'wes' enclosing 'aknes' is 'WEAKNESS'.

Can you help me to learn more?

(Other definitions for weakness that I've seen before include "Lack of strength" , "Failing or powerlessness" , "Achilles heel" , "Fault or flaw" , "Infirmity" .)

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

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.