Related Clues:

• It may be coveredin shadow
• Pupil's hidden behind this
• It's used in blinking
• Blinking membrane
• One winks with it
• It gives you a blinkered outlook on life
• Where stye may occur
• Skin for blinking
• Frequently batted, but can't bowl
• Optical cover
• Optical membrane
• One's not batted without trepidation as English yield in collapse
• Blinking cover
• Protective cover left in sink you returned
• One visiting Lord's after survey getting one to bat?