Word: costar
A person who shares star billing Example: The once famous actor objected to his costar having a bigger dressing room.
A person who slightly lacks the status to be considered a star Example: Alas, always a costar but never a star.
To perform with the billing of a costar. Example: People thought his career was over but now he will get to costar on Broadway next month.
You can find a list of possible crossword clues for COSTAR below.