Flying yet to be decided upon? (2,2,3,3)
I believe the answer is:
up in the air
'decided upon?' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives occasionally define each other.
'flying yet' is the wordplay.
I cannot really understand how this works, but
'flying' could be 'intheair' (I've seen this before) and 'intheair' is found in the answer.
The remaining letters 'up' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'to be' acts as a link.
Can you help me to learn more?
(Other definitions for up in the air that I've seen before include "undecided" , "Where skier may be seen" , "Unsettled" , "skylarks singing here?" , "Where skiers go" .)