Related Clues:

• Light-blue shade
• Blue color of the clear 9-Down
• In one part of the country there's a very soft sort of stone
• Colour variable in a Yorkshire flower
• Color of an October sky
• Cornflower cousin
• Hard mineral perhaps unexpectedly cracked open by one
• Beyond a double bend, river's clear blue
• Bright blue shade
• Blue birthstone
• River shown on street-map in blue
• Idiot, before engagement, getting quietly taken for stone
• Ezra Pound's heart battered and blue
• Turns up as father gets to secure the services of one of The Stones
• Laurence looking terrible in blue?