Crossword Genius

Common sense feature of Moscow Olympics? (4)

Ross

I believe the answer is:

nous

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

'common sense' is the definition.
(nous is a kind of common sense)

'feature of moscow olympics?' is the wordplay.
I cannot quite understand how this works, but
'of' could be 'o' and 'o' is present in the answer.
The remaining letters 'nus' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for nous that I've seen before include "we recognised in Nancy" , "How the French describe their own" , "FT in Paris, say" , "We, in France, have common sense" , "Common sense, rhymes with house" .)

I've seen this clue in The Independent.
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