Huge flower one revered beside the Nile (6)

I believe the answer is:

osiris

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'one revered beside the nile' is the definition.
I can't tell whether this definition defines the answer.

'huge flower' is the wordplay.
'huge' becomes 'os' (abbreviation for outsize).
'flower' becomes 'iris' (iris is a type of flower).
'os'+'iris'='OSIRIS'

Can you help me to learn more?

(Other definitions for osiris that I've seen before include "Egyptian god of the dead" , "one held to be divine" , "God, husband of Isis" , "Egyptian god of the underworld" , "Husband of Isis, father of Horus - sis or I (anag)" .)

I've seen this clue in The Times.

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