Joy, as girl's name (8)
I believe the answer is:
felicity
I believe this is a triple definition!
'joy' is the first definition.
(thesaurus)
'as' is a link.
'girl's' is the second definition.
'name' is the third definition.
(Other definitions for felicity that I've seen before include "Complete happiness" , "Intense joy" , "Joy -- eloquence" , "happy event" , "Girl" .)