Imagined air journey? (6,2,5)
I believe the answer is:
flight of fancy
'imagined air' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'journey?' is the wordplay.
I cannot really understand how this works, but
'journey?' could be 'flight' (flight is a kind of journey) and 'flight' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for flight of fancy that I've seen before include "An instance of free indulgence in imagination" , "Example of free use of the imagination" , "Dream" , "Far-fetched speculation" , "Imaginative excursion" .)