John --, theologian (4)
I believe the answer is:
jean
I believe this is a double definition.
'john' is the first definition.
(I've seen this in another clue)
'theologian' is the second definition.
(I know that Jean is a theologian)
(Other definitions for jean that I've seen before include "Material" , "Heavy cloth, denim" , "Frenchman" , "Englishwoman having pronounced difference" , "Girl's name" .)