Possible Clues:

• Relating to a legendary lyre player
• Relating to mysteries associated with a Thracian musician
• Relating to a legendary lyre-player
• Relating to legendary Greek lyre player
• Of a mythical Greek poet and lyre-player
• Mysterious alternative for English policeman to greet inside
• Esoteric third character in mixed 6 is quiet
• Either secret or with a broken chip
• Pertaining to a legendary lyre player
• It was mysterious the way this made the R.I.C. hop