Nosy Person Who Sneaks Around, Eavesdrops

This page is the CodyCross answer for the clue below from All Things Water, Group 1285, Puzzle 3 (Atmospheric Pressure).

Question is: Nosy Person Who Sneaks Around, Eavesdrops

and the answer is: SNOOPER

Word Meaning:

SNOOPER — A person who snoops.

Definitions from Wiktionary.