Student from French city about to confront heretic (10)
I believe the answer is:
seminarian
'student' is the definition.
(I know that seminarian is a type of student)
'french city about to confront heretic' is the wordplay.
'french city' becomes 'nimes' (I've seen this in another clue).
'about' says the letters should be written backwards.
'to confront heretic' becomes 'arian' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'nimes' back-to-front is 'semin'.
'semin'+'arian'='SEMINARIAN'
'from' is the link.
Can you help me to learn more?
(Another definition for seminarian that I've seen is " Student".)