A rude omen will alter one's bearing (9)

I believe the answer is:

demeanour

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

'a rude omen will alter one's' is the wordplay.
'a rude omen' can be anagrammed to 'DEMEANOUR'.
However, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for demeanour that I've seen before include "Behaviour" , "Enamoured of the way a person behaves" , "Appearance and attitude" , "Manner of behaving towards others" , "Look" .)

I've seen this clue in The Irish News.

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