Happiness, glee (7)
I believe the answer is:
delight
This clue is a double definition.
'happiness' is the first definition.
(I've seen this before)
'glee' is the second definition.
(I've seen this before)
(Other definitions for delight that I've seen before include "Gladden" , "Pleasure (possibly Turkish?)" , "Glee; its spirit rare, Shelley" , "Captivate" , "Rejoice" .)