Possible Clues:

• Viewer sore regularly sat by set?
• Reason to see an ophthalmologist
• Irritation for 32-Down
• 47-Across, literally
• Trouble with a lid?
• Beastly home earl finds an eyesore?
• Inflamed swelling on the edge of an eyelid
• Eye complaint that's occurred in the last year
• It may make it difficult to see, yet sun is out
• Start of some temporary Yeats exhibition is an eyesore