Go Bad, Like Milk
This page is the CodyCross answer for the clue below from House of Horrors, Group 1109, Puzzle 2 (Bubbling Cauldron).
Question is: Go Bad, Like Milk
and the answer is: CURDLE
Word Meaning:
CURDLE — (ambitransitive) To form curds so that it no longer flows smoothly; to cause to form such curds. (usually said of milk)
Definitions from Wiktionary.