Matriarch at no point removes clothes (3)

I believe the answer is:

eve

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'matriarch' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for eve that I've seen before include "The night before a festival" , "Previous day" , "Mother of Abel" , "Day before; girl's name" , "'All About - - ' (Bette Davis film)" .)

I've seen this clue in The Independent.

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