Rubber Sink Unblocker
This page is the CodyCross answer for the clue below from Past and Present Tech, Group 1447, Puzzle 1 (Mimeograph Machine).
Question is: Rubber Sink Unblocker
and the answer is: PLUNGER
Word Meaning:
PLUNGER — A device that is used to remove blockages from the drain of a basin or tub, by suction.
Definitions from Wiktionary.