Related Clues:

• Prefix with economics
• Double turn
• Certain Scrabble tile
• Feminine ending
• Snaky line
• Capital of Spain?
• Capital of Switzerland?
• Prefix with surgery
• The first of September?
• Part of RSVP
• Part of a figure eight
• Coveted Scrabble tile
• Superman's logo
• Washington has one
• Serpentine shape