Possible Clues:

• Rhyme initially penned by favourite waggish poet
• Italian Renaissance rhymester
• 'Il Canzoniere' poet
• His sonnet was innovative, but his lyrics were scattered
• Sort of pert and waggish poet
• Sort of pert and waggish Italian poet
• Italian poet
• Rod holds paintings up for poet
• Poet's pressure gets one like Herod Antipas beheaded
• Per chart (anag) - Italian poet