Second rise about a smell (8)

I believe the answer is:

reascent

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'a smell' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

'second rise' is the wordplay.
'second' becomes 're' (prefix meaning second in eg review, re-education).
'rise' becomes 'ascent' (synonyms).
're'+'ascent'='REASCENT'

'about' acts as a link.

Can you help me to learn more?

(Another definition for reascent that I've seen is " going back up".)

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

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