Heavenly body in tight leotards (8)
I believe the answer is:
lodestar
'heavenly body' is the definition.
(I know that lodestar is a type of star)
'tight leotards' is the wordplay.
'tight' indicates anagramming the letters (tight can mean drunk).
'leotards' with letters rearranged gives 'LODESTAR'.
'in' is the link.
(Other definitions for lodestar that I've seen before include "Heavenly guide" , "Guiding light; leotards (anag.)" , "In navigation, celestial reference point" , "Travel guide" , "Guiding light in sky" .)