Scent nothing gloomy (5)

I believe the answer is:

odour

'scent' is the definition.
('odour' can be a synonym of 'scent')

'nothing gloomy' is the wordplay.
'nothing' becomes 'o' (looks like zero - 0).
'gloomy' becomes 'dour' (I've seen this before).
'o'+'dour'='ODOUR'

(Other definitions for odour that I've seen before include "Aroma, smell" , "Smell; repute" , "Smell, scent" , "Regard" , "Stench" .)

I've seen this clue in The Independent.

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