Related Clues:
- Become tedious letter-writer, by the sound of it?
- Smog, e.g
- Lose its excitement
- Intrusive weather
- Clip of tree nut in Cloud
- Result of pollution
- Lose its appeal
- Weary? Get a blanket
- Smoky atmosphere
- Cloud of melancholy
- It reduces visibility
- Smoggy overcast
- Cloth for coffin
- Unclear mental state
- 'Purple ___'