Pumpernickel, reportedly dry, raised (3,5)
I believe the answer is:
rye bread
'pumpernickel' is the definition.
(I've seen this before)
'reportedly dry raised' is the wordplay.
'reportedly' shows a homophone (sound like).
'dry' becomes 'wry' (synonyms).
'raised' becomes 'bread' (I am not sure about this - if you are sure you should believe this answer much more).
'wry' sounds like 'rye'.
'rye'+'bread'='RYE-BREAD'
Can you help me to learn more?
(Other definitions for rye bread that I've seen before include "Dark bakery product" , "Dark loaf" , "food" , "Denser type of loaf" , "Baker's product of dense texture" .)