It's Flown on a Beach to Warn Swimmers Not to Swim
This page is the CodyCross answer for the clue below from World of Sounds, Group 1343, Puzzle 3 (Flowing Fountain).
Question is: It's Flown on a Beach to Warn Swimmers Not to Swim
and the answer is: REDFLAG
Word Meaning:
RED FLAG — (literally) A flag that is red, especially associated with leftist revolutionary ideologies.
Definitions from Wiktionary.