Possible Clues:

• Crystal clear
• Translucently clear
• It's really clear poor Euclid is mixed up in that place
• Transparent
• Very clear and transparent
• Clear that it's El Cid, plus unfinished work
• Absolutely crystal clear
• Translation of dull epic's very clear
• Very clear, totally transparent
• It's crystal clear gym novices come across you in Garda barracks