Related Clues:

• Good for drafting
• Like an atrium
• First to be called up
• Militarily fit
• Having no perceptible weight
• Available to serve
• Draftworthy
• Open to breezes
• Quite qualified to serve
• Ready to serve?
• Convenient apartment
• Vacuous
• Open-roofed
• Not stifling
• Bright and breezy