Woeful pudding (4)
I believe the answer is:
duff
'pudding' is the definition.
(duff is a kind of pudding)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for duff that I've seen before include "Dud - pud" , "Bad" , "Faulty (slang); a pudding" , "Worthless; pudding" , "Homer's so-called favourite tipple" .)