Star squeezed into little girdle, pirouetting (5)
I believe the answer is:
rigel
'star' is the definition.
(star in the constellation Orion)
'squeezed into little girdle pirouetting' is the wordplay.
'squeezed into' indicates the answer is hidden within the clue (the answer is squeezed into the clue).
'pirouetting' shows that the letters should be reversed in order (pirouette is a spin in ballet - letters spin round).
'legir' is hidden in the letters of 'little girdle'.
'legir' back-to-front is 'RIGEL'.
(Other definitions for rigel that I've seen before include "Orion's brightest star" , "Brightest star in Orion" , "shiner" .)