Crossword Genius

Harem’s status sign? (4)

Ross

I believe the answer is:

omen

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'harem's status' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'sign?' is the second definition.
(I know that omen is a type of sign)

Can you help me to learn more?

(Other definitions for omen that I've seen before include "Sign of a future event, good or bad" , "Foreboding" , "Augur" , "Auspice" , "Sign of something to come" .)

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