Walt does stuffings that are succulent (4)
I believe the answer is:
aloe
'succulent' is the definition.
(aloe is a kind of succulent)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for aloe that I've seen before include "has a bitter taste" , "Fleshy-leaved plant" , "O, ale with bitter plant" , "shrub" , "Flower, maybe vera" .)