One who goes to court? (7)
I believe the answer is:
admirer
'one who goes to court?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
This is the entire clue.
Can you help me to learn more?
(Other definitions for admirer that I've seen before include "Married to one who thinks highly of" , "Married (anag) -- lover" , "Hopeful lover?" , "Suitor; devotee" , "sweetheart" .)