Slender woman gets overly physical with CIA drop out (5)

I believe the answer is:

sylph

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'slender woman' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for sylph that I've seen before include "Slim person" , "Slender, graceful female" , "Slender, graceful girl" , "Slim female" , "Slim woman" .)

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

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