Related Clues:

• What some things are built on
• Glasses, informally
• Contractor's detail, briefly
• Eyeglasses, for short
• Design details
• Building data
• On __ (without a contract)
• Specification, colloquially
• Risky business, for short
• Mfr.'s detail
• Many authors write on it
• Glasses, casually
• Hamilton newspaper, slangily
• Specification, for short
• Engineer's doc.