No women (anag.) (3,4)

I believe the answer is:

new moon

(Other definitions for new moon that I've seen before include "Heavenly crescent" , "First phase(s) of lunar cycle" , "Lunar narrow, waxing crescent" , "Earth's satellite when appearing as a narrow crescent" , "Beginning of first quarter" .)

I've seen this clue in The Telegraph.

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