Related Clues:

• Chipping away at
• Don't weary everyone being boring
• Boring book about Kindles missing the beginning
• Losing ground?
• It's boring, but seems not to weary everyone
• Book, full of anger, beginning to seem tedious
• Boring ties -- more variation is needed
• Draggy — unamusing
• Fatiguing; boring
• Wearing down French sculptor, say, all round
• Anger in the majority being overturned: electorate's conclusion is 'boring'
• Flag is a little boring
• Boring book about anger and self-control, primarily
• Remote is broken — it's annoying
• Gradually wearing away, rock say