Related Clues:

• Essence of a backhanded compliment
• Dig popular ruler going two-thirds of the way?
• Rude comment
• Act in disregard of laws, rules etc
• Do awful things to note on instrument
• Abuse left for one during current legal action
• Break instrument, going to terrible extremes
• 'It's really difficult to underestimate you,' for one
• Slight addition to injury makes it worse
• Roast remark
• Disrespectful comment concealed in Berlin’s ultimatum
• Slight stain sultanate has covered up
• Complains, ultimately taking offence
• Slight gains ultimately reduced all round