Last overseas contributor to home game (5)

I believe the answer is:

omega

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'last' is the definition.
(thesaurus)

'overseas contributor to home game' is the wordplay.
'OMEGA' is hidden in amongst the letters.
However, I am unsure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for omega that I've seen before include "Art of story-telling by body movement" , "completes a series" , "The last in a series of letters" , "End of sequence" , "Conclusion" .)

I've seen this clue in The Guardian.

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