Clue: Feature of a bad air day?

Answer: SMOG

Length: 4

---

Similar Clues:

• Airport feature (e.g. CABSTAND with 8 letters)
• Airport-curb feature (CABSTAND with 8 letters)
• __ airbags (car safety feature) (DUAL with 4 letters)
• Alaska Airlines logo feature (ESKIMO with 6 letters)
• Back-of-airline magazine feature (MAP with 3 letters)
• Airy shoe feature (OPENTOE with 7 letters)
• Swept-back feature of some aircraft (DELTAWING with 9 letters)
• Boston airport's feature? (LOGANSRUNWAY with 12 letters)
• Aircraft features (FLAPS with 5 letters)
• Special offer at an airline Web site (TRIPLEMILES with 11 letters)