Related Clues:

• Agreement not to publish material before a certain time or date
• Military operation ordered second row in
• Instructed to include seal to prevent entry
• Ban British in game, or otherwise
• Block nasty type's promotion having acquired a business degree
• Government order imposing a trade ban
• Stop doctor boarding E-boat?
• Stop using space bar function
• Ban, for example, Oscar keeping mass drinking haunt
• Ban doctor boarding English ship in the past
• Isolation of an area of importance to the enemy
• Nasty European retaining secure check
• Wallflower's plea to reverse ban?
• Order imposing a trade barrier
• Siege ordered to capture part of canal