Leading actors (5)
I believe the answer is:
stars
'leading actors' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stars that I've seen before include "Celebs - constellation" , "''What is the ...? What is the ...? '' (Juno and the Paycock)" , "Horoscope (colloq.)" , "Leading performers (with stripes?)" , "Celestial bodies of hot gases" .)