Crossword Genius

A soaring air trip? (6,2,5)

Ross

I believe the answer is:

flight of fancy

I'm a little stuck... Click here to teach me more about this clue!

'trip?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'a soaring air' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is found in the answer.
'air' could be 'flight' (flight is a kind of air) and 'flight' is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for flight of fancy that I've seen before include "Far-fetched speculation" , "Dream" , "Example of free use of the imagination" , "An instance of free indulgence in imagination" , "Imaginative excursion" .)

I've seen this clue in The Globe and Mail.
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