Answer: HASBEENS

AnswerCrossword Clue
HASBEENSTheir motto is "Sic transit gloria mundi."
HASBEENSOld stars
HASBEENSFading stars
HASBEENSThey're no longer popular
HASBEENSDimmed stars?
HASBEENS"Whatever happened to ...?" subjects
HASBEENSDistant stars?
HASBEENSThey're over the hill
HASBEENSFalling stars?
HASBEENSThings that have had their day: Colloq.
HASBEENSCousins of dead ducks.
HASBEENSFormer VIP's.
HASBEENSFallen idols.
HASBEENSThose past their prime.
HASBEENSStars that no longer shine
HASBEENSThey're past their prime
HASBEENSComeback seekers
HASBEENSDinosaurs
HASBEENSThey're on their way out
HASBEENSFaded stars
HASBEENSThose past their prime
HASBEENSStars no longer shining
HASBEENSOver-the-hill gang?
HASBEENSOne-hit wonders, e.g.
HASBEENSStars who are no longer stars
HASBEENSFallen stars
HASBEENSFormer stars