Related Clues:

• Prefix meaning related by remarriage
• Pace of pest
• A pace for pets
• Foot movement
• Action of the leg
• Put foot on a pest
• Set foot down on pest
• Stage, rung
• Pace for a pest
• Place foot on as with a pest
• Pace of a pest
• 'Stage, rung (4)'
• Thus the TUC might be divided
• Might it be the TUC that is so very 20 down?
• The TUC in bits, sad to say