Portents some women scorn (5)
I believe the answer is:
'portents' is the definition.
('omen' can be a synonym of 'portent')
'some women scorn' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'OMENS' is hidden within 'women scorn'.
(Other definitions for omens that I've seen before include "Harbingers, portents" , "Portents, prophetic signs" , "Signs or warnings for the future" , "Prophetic signs of good or evil" , "Signs of things to come" .)