Possible Clues:

• Prey catcher
• Avian gripper
• What makes some Catalonians grasping?
• Olive branch grasper on America's Great Seal
• Claw used in some brutal onslaught
• Claw on a hawk
• Stock Exchange certificate St Paul found regularly
• End of foot with trimmed single claw
• Claw of a condor
• Not a lonely part for a hooker?