Possible Clues:

• Boasts of short-distance lines
• Squinter's wrinkles
• Some wrinkles
• 'More than one in the eye for the aged? That's for the birds (4'1,4)'
• 'Do the birds stand on them by the eyes (4'1,4)'
• Sign of ageing
• Eye-lines
• Sounds as if the ayes have it (or rather, them) under the birds
• Wrinkles in skin at side of eyes
• Wrinkles near the eyes