Walking Quietly So as Not to Be Heard
This page is the CodyCross answer for the clue below from The 1950s, Group 1815, Puzzle 3 (Videotape Invented).
Question is: Walking Quietly So as Not to Be Heard
and the answer is: CREEPING
Word Meaning:
CREEPING — present participle and gerund of creep
Definitions from Wiktionary.