The crossword solution for the term 'FEEDS THE LINES' is 'CUES'. The term 'cues' refers to a signal or prompt given to a performer, such as an actor or musician, to begin or continue an action. In theatre, cues are often used to indicate when a performer should enter or exit the stage, or when a sound or light effect should be triggered. In music, cues are used to indicate when a musician should start or stop playing.