Possible Clues:

• Hand-to-hand grappling
• Hand-to-hand combat
• Fighting others left in faction
• Struggling
• Mat activity
• Perhaps all in this to make what's left fishy at last
• Something done between the ropes
• It was Shirley Crabtree's sport
• Greco sport from the ancient Games
• "Move" sport of 17, 21, 31, 42 and 56-Across