Related Clues:

• Fork
• Divide, in a way
• Breakup
• Champagne portion
• Kegler's headache
• Gymnastic maneuver
• Alley oops?
• What 51-Across did in the '70s, for Los Angeles
• Cut halfway through
• Cut a sandwich, say
• Trouble for a bowler
• Alley 'oops'?
• One-eighth of a magnum
• Divide into two equal parts
• Bowler's headache