Young head-turner hotel worker holds back (5)
I believe the answer is:
owlet
'young head-turner' is the definition.
(owls can rotate their heads a long way round)
'hotel worker holds back' is the wordplay.
'holds' indicates the answer is hidden within the clue.
'back' says the letters should be written in reverse.
'telwo' is hidden in the letters of 'hotel worker'.
'telwo' back-to-front is 'OWLET'.
(Other definitions for owlet that I've seen before include "new hooter?" , "Young nocturnal hunting bird" , "Little hooter?" , "Young fly-by-night" , "Wise young" .)