Son-in-law rising, holding a wine cocktail, feels exhilarated (5,2,3)
I believe the answer is:
walks on air
'feels exhilarated' is the definition.
I know that 'exhilarated' relates to this answer.
'son-in-law rising holding a wine cocktail' is the wordplay.
'in' indicates putting letters inside.
'rising' shows that the letters should be reversed in order (going up in a down clue).
'holding' means one lot of letters goes inside another.
'wine cocktail' becomes 'kir'.
'law' reversed gives 'wal'.
'a' placed into 'kir' is 'kair'.
'wal'+'kair'='walkair'
'son' placed inside 'walkair' is 'WALKS ON AIR'.
Can you help me to learn more?
(Another definition for walks on air that I've seen is " is joyful".)