Buy-one-get-one-free item?
Else clues• -- movement (military maneuver)
• Crab claw
• Crustacean's claw
• Grab, lobster-style
• Grasping part
• Lobster claw
• Lobster claw, for example
• Lobster feature
• Nip, in a way
• One of a crab's grabbers
• A hand tool for holding consisting of a compound lever