Celebrities who should set a shining example (5)

I believe the answer is:

stars

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'celebrities' is the definition.
(I've seen this in other clues)

I cannot understand how the rest of the clue works.

(Other definitions for stars that I've seen before include "Leading actors" , "Celebs - constellation" , "Leading performers (with stripes?)" , "''What is the ...? What is the ...? '' (Juno and the Paycock)" , "Celestial bodies of hot gases" .)

I've seen this clue in the Evening Standard.

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