Girl stuff, French style (5)

I believe the answer is:

ninon

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This clue might be a double definition.

'girl' is the first definition.

'stuff french style' is the second definition.
The definition suggests a singular noun which matches the answer.

Can you help me to learn more?

(Other definitions for ninon that I've seen before include "delicate material" , "fine material" , "Dressmaker" , "Silk voile" , "thin fabric" .)

I've seen this clue in the Evening Standard.

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