Related Clues:

• Form component
• Vacuous
• Type of expression
• Something to fill in
• Available for rent
• Devoid of thought
• Holding nothing
• Empty, as a lot
• Not filled in
• Unfilled-in
• Like some stares
• Type of stare
• Draw a __
• Fill in the ___ (a hint to this puzzle's theme)
• With 125-Down, empty unit of land