Quickly produce fabulous floor (8)
I believe the answer is:
knockout
'quickly produce' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'fabulous floor' is the wordplay.
I cannot really understand how this works, but
'floor' could be 'ko' (I've seen this in other clues) and 'ko' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for knockout that I've seen before include "reverse of OK?" , "Eliminate" , "End of bout" , "Act of rendering unconscious" , "Winning blow" .)