Related Clues:

• Back __: making a comeback
• "Look ___ this way ..."
• Words after keep or going
• In a fight
• One way to get caught
• Exchanging insults, perhaps
• Working hard on a job
• With 54-Down, back to fighting
• Bumping heads
• A bird mating?
• "Have ___!" ("Go right ahead!")
• In a scuffle
• In the act of re-forming diamonds hardened
• Going hard
• In a quarrel