Lowest point of floor I dance around (5)
I believe the answer is:
nadir
'lowest point' is the definition.
'of floor i dance around' is the wordplay.
'of' says the answer is hidden in the clue.
'around' is a reversal indicator.
'ridan' can be found hidden inside 'floor i dance'.
'ridan' reversed gives 'NADIR'.
(Other definitions for nadir that I've seen before include "Point opposite the zenith" , "The lowest point of anything" , "Dinar (anag.)" , "worst-case scenario?" , "pits" .)