Crossword Genius

Illness reportedly went quickly (4)

Ross

I think it could be either:

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3

4

flew

'went quickly' is the definition.
(the time flew by)

'illness reportedly' is the wordplay.
'illness' becomes 'flu' (flu is a kind of health problem).
'reportedly' shows a homophone (sound like).
'flu' sounds like 'FLEW'.

(Other definitions for flew that I've seen before include "Dashed" , "Fled" , "Travelled by air" , "Shot" , "Rushed (by air?)" .)

I've seen this clue in The Independent.
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