Possible Clues:

• Poet who feuded with Pope Boniface VIII
• Molar of an Italian writer?
• Writer about a hellish journey
• Poet depicted on Italy's two-euro coin
• His portrait appears on Italy's two-euro coin
• Poet who wrote 'Let us not speak of them, but look, and pass on'
• He wrote the "Convivio"
• Boccaccio wrote a biography of him
• In days before, this was him
• 'Clerks' protagonist with the repeated line 'I'm not even supposed to be here today!'