To Rot; Addams Family's Creepy Uncle
This page is the CodyCross answer for the clue below from Spa Time, Group 804, Puzzle 3 (Sauna Rocks).
Question is: To Rot; Addams Family's Creepy Uncle
and the answer is: FESTER
Word Meaning:
FESTER — (pathology, obsolete) A fistula.
Definitions from Wiktionary.