What does the cryptic crossword clue "Wading bird fluttering at cove (6)" mean?

The definition is "Wading bird". The wordplay uses an anagram. anagram of AT + COVE = AVOCET; definition: "Wading bird" The answer is AVOCET.

Wading bird fluttering at cove (6)

Daily Mail Cryptic #17288 | 5 Across | 2024-02-07 flower