Related Clues:

• Little Derek shows character by joining the Territorials
• Greek 'd'
• Cover over the floor leaving beginner stranded
• The cover for covering the hole is put back
• Code word for D
• Dealt (anag.)
• It can be raised for getting upset about nothing
• Upper covering
• See 12 Across
• In shelter demonstration fails to start
• Character inside citadel talking
• Rain protection
• A current issue on the coast
• Kind of wings with which Daedalus began
• What Euclid saw as a triangle?