Exhilaration of oxygen after sudden wind (5)
I believe the answer is:
gusto
'exhilaration' is the definition.
(I've seen this before)
'oxygen after sudden wind' is the wordplay.
'oxygen' becomes 'O' (atomic symbol for oxygen).
'after' means one lot of letters go next to another.
'sudden wind' becomes 'gust' (I've seen this in another clue).
'o' after 'gust' is 'GUSTO'.
'of' is the link.
(Other definitions for gusto that I've seen before include "Zest, exuberance" , "Great enjoyment, vigour" , "Great enthusiasm" , "(Corporate) emblem" , "Zest and enjoyment in doing something" .)