Crossword Genius

Cavorting captain skipped, disturbing quantum particle (8)

Ross

I believe the answer is:

graviton

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

'particle' is the definition.
(I know that graviton is a type of quantum)

'cavorting captain skipped disturbing quantum' is the wordplay.
I cannot really see how this works, but
'quantum' could be 'ton' (ton is a kind of quantum) and 'ton' is found within the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Another definition for graviton that I've seen is " Hypothetical particle".)

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