Possible Clues:

• "Duchess of Alba" artist
• Spanish painter of ''The Disasters of War''
• Portrait painter unknown in the Panaji area
• Leave and, yes, come back for the painter
• Artist's meditative technique oddly swapped
• Ay, go to see great Spanish painter
• The painter might go and get agreeable to come back
• Francisco de - - , Spanish painter
• Eighteenth to nineteenth century Spanish artist
• Suffering nameless agony for his art?