Self-Contained Underwater Breathing Apparatus Use
This page is the CodyCross answer for the clue below from The 1950s, Group 1812, Puzzle 2 (Four Minute Mile).
Question is: Self-Contained Underwater Breathing Apparatus Use
and the answer is: SCUBADIVE
Word Meaning:
SCUBA — (underwater diving) An apparatus carried by a diver, which includes a tank holding compressed, filtered air and a regulator which delivers the air to the diver at ambient pressure which can be used underwater.
Definitions from Wiktionary.