Crossword Genius

Scent ... Cologne, it's said (5)

Ross

I believe the answer is:

odour

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'scent' is the definition.
(synonyms)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for odour that I've seen before include "Stink" , "Aroma or fragrance" , "Stench" , "Whiff" , "pervasive quality" .)

I've seen this clue in The Telegraph.
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