Related Clues:

• Not at all stiff
• ''Ten-hut!'' reversal
• Drill sergeant's command
• "Relax, soldier!"
• Not rigid
• Lithe
• Standing order?
• Command to a saluter
• Unworried
• Drill command
• In the recliner, e.g.
• Nimble and quick
• Pliable
• Pretty agile for one's age
• Like old lettuce