Stole books collected by bloke (6)
I believe the answer is:
mantle
'stole' is the definition.
(both are a type of cloak)
'books collected by bloke' is the wordplay.
'books' becomes 'nt' (New Testament).
'collected by' means one lot of letters goes inside another.
'bloke' becomes 'male'.
'nt' placed inside 'male' is 'MANTLE'.
(Other definitions for mantle that I've seen before include "A cloak, cover" , "Goes over light" , "Lament in loose cloak" , "Cloak and shelf over the fireplace" , "Cloak or loose outer garment" .)