Fictional Marner (5)
I believe the answer is:
silas
'fictional marner' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for silas that I've seen before include "Missionary" , "'Uncle . . . . .' , novel by J Sheridan Le Fanu" , "George Eliot's Marner" , "Uncle - (Le Fanu); - Marner (Eliot)" , "Armies snarl (anag), novel by 14 21" .)