Crossword Genius

OK if Nan, Dan, Eddy becoming tormented (4,3,5)

Ross

I believe the answer is:

fine and dandy

I'm a little stuck... Click here to teach me more about this clue!

'ok' is the definition.
(thesaurus)

'if nan dan eddy becoming tormented' is the wordplay.
'if nan dan eddy' can be anagrammed to 'FINE AND DANDY'.
Though, I'm not sure how the anagram is indicated.

Can you help me to learn more?

(Another definition for fine and dandy that I've seen is " Going very well and to plan".)

I've seen this clue in The Everyman puzzle in The Observer.
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