Possible Clues:

• Something done after beer with no head is untouched
• Not broke in a diplomatic sort of way
• There's no break in diplomacy there, by the sound of it
• Undiminished interest before part of play
• Not compromised
• It holds National Theatre account together
• Sound diplomacy after case of incarceration
• Whole books I pretend to bind?
• Complete diplomat excels thus
• Whole section in joint action