Succulent part of a fleshy fruit (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
pulp
(Other definitions for pulp that I've seen before include "Soft, soggy mass" , "Soft structureless mass - type of fiction" , "Flesh of fruit - type of fiction" , "recycle paper" , "Soft fruit flesh" .)