Fiddling about comes before burning, maybe (11)

I believe the answer is:

overcooking

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

'fiddling' is the definition.
Although both the answer and definition are present participle verbs, I cannot see how one could define the other.

'about comes before burning maybe' is the wordplay.
'about' becomes 'over' (both can mean around).
'comes before' is a charade indicator (letters next to each other).
'burning maybe' becomes 'cooking' (I can't explain this - if you can you should give a lot more credence to this answer).
'over'+'cooking'='OVERCOOKING'

Can you help me to learn more?

I've seen this clue in The Independent.

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.