Related Clues:

• Whistle, perhaps, wanting to relax the pressure
• The foreign aristocrat's group express frustration
• The French aristos' side vent their anger
• Give vent to one's emotions
• Vented one's feelings, having fired the second eleven
• Release the second eleven, and show one's anger
• The French nob's side go ballistic
• Modern trains can't release excess energy
• Reprieves side to give vent to feelings
• The 'Scotsman' for instance did it to get rid of surplus energy
• Get rid of pent energy
• Vent one's emotions
• Released pent-up emotions, then forgave second XI, perhaps
• Release pent-up emotions, or what the starred answers can do
• Celebrate with abandon