Related Clues:

• Square dance formation
• Race starter's word
• "Quiet on the ___!"
• Evil brother of Osiris
• Tennis match part
• Nightclub performance
• All prepared
• Braced oneself for impact
• All in place
• Harden, as plaster
• Become firm
• Cohesive group
• Part of a music gig
• Court collection
• Tennis section