Possible Clues:

• Do or say something again
• Say again, repeat
• Intellectual, scratching head, is to do it again
• To repeat after student is scholarly
• Tie it in a knot at any rate and repeat it
• Tie this in a knot at speed. Say again?
• Writer at ease introduces repeat
• Come again?
• Perform repeatedly what screenwriter at Elstree has penned
• Remind again