Shadow-Casting Blade of a Sundial
This page is the CodyCross answer for the clue below from Time for a check-up, Group 1707, Puzzle 5 (Treatments).
Question is: Shadow-Casting Blade of a Sundial
and the answer is: GNOMON
Word Meaning:
GNOMON — An object such as a pillar or a rod that is used to tell time by the shadow it casts when the sun shines on it, especially the pointer on a sundial.
Definitions from Wiktionary.