Convert you mentored, producing book from OT (11)
I believe the answer is:
deuteronomy
'book from ot' is the definition.
I can't tell whether this definition defines the answer.
'convert you mentored' is the wordplay.
'convert' indicates an anagram (I've seen this in other clues).
'you'+'mentored'='youmentored'
'youmentored' with letters rearranged gives 'DEUTERONOMY'.
'producing' acts as a link.
Can you help me to learn more?
(Other definitions for deuteronomy that I've seen before include "Old cat in T.S.Eliot's" , "Book of the Old Testament" , "Fifth book of the Bible" , "OT book" .)