Noted return at 1 on sudden explosion (10)

I believe the answer is:

detonation

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'sudden explosion' is the definition.
'detonation' can be an answer for 'explosion' (synonyms). I am not sure about the 'sudden' bit.

'noted return at 1 on' is the wordplay.
'return' says the letters should be written in reverse.
'1' becomes 'I' (Roman numeral).
'noted' reversed gives 'deton'.
'deton'+'at'+'i'+'on'='DETONATION'

Can you help me to learn more?

(Other definitions for detonation that I've seen before include "report" , "Blast" , "Explosion" .)

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

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