Related Clues:

• Dishonest sorts
• Walks quietly
• Furtive ones
• Gymwear
• Creeps
• Proceeds furtively
• Moves quietly
• Isn't obvious
• Performs a covert op, perhaps
• Quarterback options
• Stool pigeons
• Untrustworthy ones
• Prowls
• Ballerinas dance on these
• Tiptoes