Related Clues:

• Like a gag, perhaps, but covering top of eyes
• Timeless characteristic of Glyndebourne's output having vision?
• Blow up a small group
• This could enlarge short boys?
• One provides tot in club initially
• Something the scientific observer gets close to?
• Fitted lens from storm centre on gun
• Vision's funny, beginning to go
• Lens of an optical instrument
• Handle king and jack
• Commune in Northern France making contact?
• Choose integrated circuit by sight
• It's behind pupil starting off learning each new subject
• Leonard's telescope will have one
• Smartphone part