Related Clues:

• Ruby or Sandra
• Wallace of 'E.T.'
• ___ Domini
• Part of A.D.
• Latin word on a cornerstone
• See 17-Across
• The 'A' in A.D.
• Scenic Scottish river
• Poor grade
• Part of a cornerstone inscription
• Low mark
• Gidget portrayer Sandra
• 'Look at Me, I'm Sandra ___'
• Word on monuments
• Insect repellent ingredient