High priest's staff producing novel (6,3)
I believe the answer is:
aarons rod
I believe this is a double definition.
'high priest's staff' is the first definition.
(biblical object)
'novel' is the second definition.
(DH Lawrence novel)
'producing' is the link.
(Other definitions for aarons rod that I've seen before include "book" , "Lawrence's work" , "Staff that worked miracles" , "A DH Lawrence novel" , "bloomer" .)