Smooth transition of house guests (5)
I believe the answer is:
segue
'smooth transition' is the definition.
(I've seen this in another clue)
'of house guests' is the wordplay.
'of' indicates the answer is hidden within the clue.
'SEGUE' is hidden in the letters of 'house guests'.
(Other definitions for segue that I've seen before include "In music, an immediate transition from one part to another" , "carry on" , "Move continuously from one song to another" , "Move seamlessly from one section to another" , "Change smoothly from one thing to another" .)