Answer: costumed

AnswerCrossword Clue
COSTUMEDLike some ball attendees
COSTUMEDDressed for a masquerade
COSTUMEDProvided with period attire.
COSTUMEDReady to go onstage
COSTUMEDClad, as for a festival
costumeddesign costumes for costume a play
costumedto provide with a costume
costumedCOSTUME, to dress (to clothe (to provide with clothing))