Possible Clues:

• Entertainer is treat when sloshed
• Skilful performer amidst poets? It rather backfires!
• Entertainer sozzled is treat
• Tastier cooking for creative type
• Trite as farcical entertainer
• Entertainer, i.e. star, lead in theatre performing?
• Troupe performer
• Entertainer coming out of Stuttgart is temperamental
• Dali, for instance -- Spain's entertainer
• Treat is playing The Entertainer