What does the cryptic crossword clue "Whirlpool seen in flooded dyke (4)" mean?

The definition is "Whirlpool". The wordplay uses a hidden word. hidden in "seen in floodED DYke"; definition: "Whirlpool" The answer is EDDY.

Whirlpool seen in flooded dyke (4)

Daily Mail Cryptic #17852 | 12 Across | 2026-04-08 flower