A Linesman is a job title given to someone who works in the entertainment industry. Specifically, they are responsible for managing the lines of dialogue that actors must memorize and deliver during a performance. The term 'Linesman' is often used interchangeably with 'Dialogue Coach' or 'Script Supervisor'. The crossword solution for the term 'Linesman' is ACTOR, as this is the profession that Linesmen typically work with.