Crossword Genius

Where, dancing, a girl gets nothing right (5)

Ross

I believe the answer is:

floor

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'where dancing a' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'girl gets nothing right' is the wordplay.
'girl' becomes 'flo' (short for Florence).
'gets' is a charade indicator (letters next to each other).
'nothing' becomes 'O' (looks like zero - 0).
'right' becomes 'r' (common abbreviation).
'flo'+'o'+'r'='FLOOR'

Can you help me to learn more?

(Other definitions for floor that I've seen before include "Dumbfound" , "Sea bottom; baffle" , "Defeat" , "Stump" , "Knock down - planking" .)

I've seen this clue in the Evening Standard.
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