Parson crazed with love for highly vocal female (7)
I believe the answer is:
soprano
'highly vocal female' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'parson crazed with love' is the wordplay.
'crazed with' is an anagram indicator (a crazy order of the letters).
'love' becomes 'o' (love means zero in tennis).
'parson' anagrammed with 'o' can make 'SOPRANO'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for soprano that I've seen before include "(Singer of) the highest vocal range" , "Highly vocal musician" , "Sutherland?" , "chorus girl, perhaps" , "High female voice" .)