Related Clues:

• 'When it's ___' (old riddle's end)
• Propped open, perhaps
• Not fully closed
• Cracked open
• Like a 1-Across, maybe
• 'When it's ___' (old riddle answer)
• Leaving a small opening
• Between open and closed
• Door positioning
• Mourn
• Cracked a bit
• Partially open
• Just open
• A bit cracked?
• Slightly cracked