Possible Clues:

• Metal disc
• Round ornament dropped initially in food for carnivore
• Me boy, come back with the beastly king for the decoration
• Daughter tucking into lunch possibly with a bit of pride -- chunk of lamb?
• (Commemorative) disc
• The device needed for me to get the boy back with the big cat
• Round pendant
• Award hung on a chain or ribbon
• Decoration on a beastly monarch is decorative
• Cut a line that's bitten by sea cat