Help an overwrought girl? (5)

I believe the answer is:

nadia

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

'overwrought girl?' is the definition.
'Nadia' can be an answer for 'girl?'. I'm not sure about the 'overwrought' bit.

'help an' is the wordplay.
'help' becomes 'nadi' (I can't explain this - if you can you should believe this answer much more).
'an' becomes 'a'.
'nadi'+'a'='NADIA'

Can you help me to learn more?

(Other definitions for nadia that I've seen before include "(Originally Russian) female name (reverse of Irish male name)" , "Name of girl" , "___ Comaneci, Romanian gymnast" , "Russian woman" , "Foreign woman" .)

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

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