Very Old Clock That Uses Shadows
This page is the CodyCross answer for the clue below from Botanical Garden, Group 1431, Puzzle 5 (Tiered Fountains).
Question is: Very Old Clock That Uses Shadows
and the answer is: SUNDIAL
Word Meaning:
SUNDIAL — A device measuring the time of day by the position of a shadow cast by a pole or plate (gnomon) upon an engraved series of marks.
Definitions from Wiktionary.