Could Paul have engineered such a huge disturbance? (8)

I believe the answer is:

upheaval

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'disturbance?' is the definition.
(I know that upheaval is a type of commotion)

'could paul have engineered such a huge' is the wordplay.
'paul have' can be anagrammed to 'UPHEAVAL'.
But, I'm not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for upheaval that I've seen before include "Disruptive disturbance" , "State of violent disturbance and disorder" , "Violent or sudden change or disruption" , "Great disturbance and disorder" , "Disturbance or turmoil" .)

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

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