Fairy's manner (3)
I believe the answer is:
Here is my best explanation:
This clue is a double definition.
'fairy's' is the first definition.
'manner' is the second definition.
(air is a kind of manner)
(Other definitions for air that I've seen before include "Light breeze", "Atmosphere; appearance", "Melody or tune", "Mixture of gases needed for breathing", "Gas mix surrounding the earth", "Tune or aura", "If it's hot, it's boastful", "Look - warm and dry", "Broadcast - song" and "Atmosphere - tune".)