Possible Clues:

• Break in on; disregard
• Might this defile the dead five-ten?
• Infringe; defile
• Break agreement, mix oil before stirring tea after five
• Machine Head song that will break boundaries?
• Abuse? It's quickly detected in bistro perhaps when consuming drink (calorie-free)
• Profane
• Do awful things to note on instrument
• Act in disregard of laws, rules etc
• Breach