What does the cryptic crossword clue "Cite cast after broadcast that's very happy (8)" mean?

The definition is "very happy". The wordplay uses an anagram. anagram of CITE + CAST = ECSTATIC; definition: "very happy" The answer is ECSTATIC.

Cite cast after broadcast that's very happy (8)

Daily Mail Cryptic #17337 | 4 Down | 2024-04-16 flower