The term 'PERFORM A ROLE ON STAGE' can be summarized by the crossword solution 'PLAYACT', which is a 7-letter word. Playacting is the act of performing a role on stage, usually in a theatrical production. It involves an actor or actress taking on the persona of a character and speaking their lines in order to bring the story to life. Playacting is an important part of theatre, as it allows the audience to experience the story in a more immersive way.