Related Clues:

• Greek letter or cross
• T, to Theocritus
• T-shaped cross
• Certain Greek letter
• 19th letter of the Greek alphabet
• Sigma-upsilon go-between
• A Greek letter
• Crossed Greek letter
• T, in Athens
• T as in Terpsichore
• Follows sigma
• Letter four after omicron
• Fourth letter before 21-Down
• Hellenic 'T'
• 19th of 24 Greek letters