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Across 4. a three-legged stand or support 7. professional care and treatment of the feet, as removal of corns and trimming of toenails 10. a person who goes or travels on foot; walker 12. an instrument worn by a walker or runner for recording the number of steps taken 13. the function or work of a teacher

Down 1. a three-wheeled public conveyance operated by pedals 2. hindrance 3. a person qualified to diagnose and treat foot disorders 5. a foot-operated lever used to control certain mechanisms 6. a supporting structure or piece; base 8. an animal, esp. a mammal, having four feet 9. any of numerous predaceous, chiefly nocturnal arthropods constituting the class Chilopoda, having an elongated, flattened body composed of from 15 to 173 segments, each with a pair of legs, the first pair being modified into poison fangs 11. a low wall forming a base for a construction