Related Clues:

• 15th Greek letter
• A very short distance to track one's initial letter
• Moronic (anag) — Greek letter
• Greek letter regarding housing crisis initially framed by artist
• Foreign letter — I'm no roc (anag)
• Greek character unexpectedly moronic
• Mike's a different bloke after love letter
• Greek character, attention-seeker captivating male friend, briefly
• Greek letter O
• Letter about computer parts
• Greek character, very small, working outside
• I snubbed friend after returning second letter
• Greek character's order, constant in golf club
• Greek letter o
• Old man holding sound-enhancing device — a character!