Quick way to take the air between flights (5)
I believe the answer is:
stair
'quick way to take the air between flights' is the definition.
I can't judge whether this definition defines the answer.
'quick way to take the air' is the wordplay.
'quick way' becomes 'St' (quick method of writing 'Street', a way).
'to take' is a charade indicator (letters next to each other).
'st'+'air'='STAIR'
Can you help me to learn more?
(Other definitions for stair that I've seen before include "Step as part of flight" , "this could get one down" , "Set of steps" , "One step of a flight" , "Word linking way and well" .)