John or Paul (6)
I believe the answer is:
bunyan
'john or paul' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bunyan that I've seen before include "author John" , "The Pilgrim's Progress author, d. 1688" , "Writer" , "Paul -, US mythic hero" , "John . . . . . . wrote 'The Pilgrim's Progress'" .)