Irregular stay, with nude dancing (8)
I believe the answer is:
unsteady
'dancing' is the definition.
(thesaurus)
'irregular stay with nude' is the wordplay.
'irregular' indicates anagramming the letters.
'with' says to put letters next to each other.
'stay' put after 'nude' is 'nudestay'.
'nudestay' with letters rearranged gives 'UNSTEADY'.
(Other definitions for unsteady that I've seen before include "Wavering" , "Liable to shake" , "Not safe" , "Unstable" , "Reeling" .)