Possible Clues:

• It's a mistake to put on a slip
• Inverted arrival is integral to dumb mistake
• Speechless about a bishop taken aback by misprint
• Mistake in printed work
• Mistake in book, etc
• That's the wrong way to treat a belly - quite a mistake
• It's unusually rare to stomach printing mistake
• Mistake of traitor trapped by signs of hesitation
• Dubious rare pot - mistake in text
• Slip on paper