Related Clues:

• Word between ready and go
• Prepare
• Query before 'Here goes!'
• 'Quiet on the ___!'
• Ready for action
• See 49-Across
• See 2-Down
• Close at hand
• Resolved
• 'I did it!'
• Fix firmly
• At hand
• Nicely situated
• Start of many limericks
• Establish