Related Clues:

• Boom, e.g.
• Boom or box
• A Vegas bandit has only one
• Shot target
• Practice pugilism
• One may be in a cast
• Prepare for the ring
• Hand-holder
• Argue
• Strengthen, in a way
• Supply (with)
• Translucent mineral
• Practice one's one-two
• Lock horns
• Mix it up