Related Clues:

• Land measure
• Surveyor's subject
• Kind of code
• Carpeting calculation
• Sphere, as of interest
• Length x width, for a rectangle
• Restricted ___
• The 'A' of 38-Across
• See 65-Across
• Sphere of specialty
• Territory
• Geometry topic
• Kind of rug or code
• Grounds
• Section of Manhattan