Related Clues:

• 'Cool but rude' Ninja Turtle, in a song
• Renaissance giant
• "Ecce Homo" painter
• Rival of Leonardo
• Pope Julius II portraitist
• Vatican Palace painter
• "Presentation of the Virgin" painter
• Italian painter
• Sounds as if one may take it as read that he was the greatest 17 across in Venice
• A little bird, my boy, for the artist
• I taint the little bird red with the boy artist
• Old-named Venetian Renaissance painter
• A painter's painter finding another a help
• ... which could be a help to one recently exhibited in the 15 square 4
• Half of Peruvian lake depicted by an old master