Possible Clues:

• 18th-century English portraitist
• Sir Joshua -, English portrait painter
• Painter using reds only irregularly
• Artist daubed only in crimson and scarlet?
• English portraitist who championed the Grand Style
• Painter and architect say sold out
• Sir Joshua - - (painter)
• Sly drone aggravated old painter
• Wrap giant
• Joshua -, C 18 painter