You Should Halt When This Turns Red
Puzzle 5 of Puppy Love Pack
Question is: You Should Halt When This Turns Red
and the answer is: STOPLIGHT
Word Meaning:
STOPLIGHT — (US, Philippines) A traffic control signal, traditionally consisting of three lights, colored green, yellow/amber, and red, meaning proceed, prepare to stop, and stop, respectively.
Definitions from Wiktionary.