Feeling nausea due to being high as a kite? (7)
I believe the answer is:
airsick
'feeling' is the definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for airsick that I've seen before include "Nauseous when flying" , "Nauseous in flight" , "Ill when flying" , "Unwell when flying" .)