Crossword Genius

Herald features final letter from Greece (5)

Ross

I believe the answer is:

omega

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

This might be a double definition.

'herald features final' is the first definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'letter from greece' is the second definition.
(letter from the Greek alphabet)

Can you help me to learn more?

(Other definitions for omega that I've seen before include "Final outcome" , "Greek finalist" , "symbol of resistance?" , "letter from abroad" , "24th Greek letter" .)

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