It's Left in the Sand as You Walk
This page is the CodyCross answer for the clue below from Apothecary, Group 1976, Puzzle 2 (Safety Protocols).
Question is: It's Left in the Sand as You Walk
and the answer is: FOOTPRINT
Word Meaning:
FOOTPRINT — The impression of the foot in a soft substance such as sand or snow.
Definitions from Wiktionary.