Cover female put on adult article (7)

I believe the answer is:

sheathe

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'cover' is the definition.
(to sheathe something is to cover it)

I don't understand the rest of the clue.

(Other definitions for sheathe that I've seen before include "Put (a sword) into case" , "Put into scabbard" , "Cover in case" , "Protective cover, for sword say" , "Put (a sword) it its cover" .)

I've seen this clue in The Times and The Sunday Times.

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