Cease to Function, Become Insane
This page is the CodyCross answer for the clue below from Amusement Park, Group 213, Puzzle 4 (Trolley Parks).
Question is: Cease to Function, Become Insane
and the answer is: BREAKDOWN
Word Meaning:
BREAK DOWN — (intransitive, of a machine, computer, vehicle, etc.) To stop functioning.
Definitions from Wiktionary.