As Regular as __; Repeatedly Like Tics and Tocs
Puzzle 2 of Party Planning Piece of Cake Pack
Question is: As Regular as __; Repeatedly Like Tics and Tocs
and the answer is: CLOCKWORK
Word Meaning:
CLOCKWORK — A mechanism powered by a coiled spring and regulated by some form of escapement; the power is transmitted through toothed gearwheels and used to drive a mechanical clock, toy, or other device.
Definitions from Wiktionary.