Crossword Genius

Napoleon's game? (4)

Ross

I believe the answer is:

solo

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

This could be a double definition.

'napoleon's' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'game?' is the second definition.
(I've seen this before)

Can you help me to learn more?

(Other definitions for solo that I've seen before include "Done by one person" , "Fly aircraft" , "On one's own, unaccompanied" , "Whist variant" , "Performance by one person" .)

I've seen this clue in the Evening Standard.
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