Expression of exuberance associated with invention of a bicycle trick (7)
I believe the answer is:
wheelie
'a bicycle trick' is the definition.
The definition suggests a singular noun which matches the answer.
'expression of exuberance associated with invention' is the wordplay.
'expression of exuberance' becomes 'whee' (I can't justify this - if you can you should believe this answer much more).
'associated with' is a charade indicator (letters next to each other).
'invention' becomes 'lie'.
'whee'+'lie'='WHEELIE'
'of' is the link.
Can you help me to learn more?
(Other definitions for wheelie that I've seen before include "Biking trick" , "A rhyme for really" , "Biker's stunt" , "Type of bin" , "good move on bike?" .)