Red now reformed? Be curious! (6)

I believe the answer is:

wonder

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'be curious' is the definition.
I can't tell whether this definition defines the answer.

'red now reformed?' is the wordplay.
'reformed?' is an anagram indicator.
'red'+'now'='rednow'
'rednow' with letters rearranged gives 'WONDER'.

Can you help me to learn more?

(Other definitions for wonder that I've seen before include "Marvellous person; feel doubt" , "Feel curious" , "Something amazing" , "Scene of Alice's adventures" , "Ponder" .)

I've seen this clue in The Sun.

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