"The Da Vinci Code” monk (5)
I believe the answer is:
silas
'the da vinci code monk' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for silas that I've seen before include "Forename of miser" , "Weaver" , "'Uncle . . . . .' , novel by J Sheridan Le Fanu" , "Chap" , "Armies snarl (anag), novel by 14 21" .)