Related Clues:

• Labor action
• Bowling or baseball term
• Go on the picket line
• See 29 Down
• Work stoppage
• Its symbol is X
• Perfect pitch
• Fouled-off pitch, perhaps
• Bowling feat
• Alley coup
• Bowling goal
• Job action
• Its symbol is 'X'
• Ump's call, in baseball
• Hit at a trade dispute