Possible Clues:

• Reverse of 10 making TUC look uncomfortable?
• Labor dispute tactic
• One in scrum at match loses head in firm dispute that leads to exclusion
• Labor dispute strategy
• Employer's exclusion of employeed from workplace during dispute
• Firm action, employing bar in dispute
• Bar (house) against one
• 13 closed to workers with crazy note about their heart
• Employer's ploy
• Exclusion of employees