Related Clues:

• Iron grating at castle gateway
• Wine to select is found at gate
• Keep behind this gate?
• A device signalling 'No visitors'? One's let down
• Drink is seen around select feature of castle
• Drink on select island -- bar entrance with this maybe?
• I put scroll round iron grating
• Drink, and gather one's entry may be barred by this
• Scroll I put out showing symbol of Parliament
• Surplus selection is kept under wine bar on the way in
• Removal of creatures from harbour is a defensive measure
• Gather below Dover perhaps is castle entrance
• It bars the entrance to unwanted visitors
• Keep barrier in island on hold, and gather within
• Left to reduce size of one’s protective grating