Related Clues:

• Source of illumination
• Idea, symbolically
• Lamp-socket insert
• Bright idea symbol
• Shining example of current usage
• Symbol for an idea
• Does this mean it goes into ground without any heavy digging? Now, there's a bright idea symbolically speaking!
• One should make things clear - not heavy on the onion?
• Easy to raise daffodil that'll brighten your surroundings
• (Electric) lamp
• Clue to cry about - such an illuminating thing!
• Pale daffodil should brighten things up
• Easily disturbed, sob when upset and glower
• Easy if upset to cry or glower
• What'll brighten up the room -- pale daffodil, perhaps