What does the cryptic crossword clue "Unexpectedly, Dad saw floral dish (7,5)" mean?

The definition is "dish". The wordplay uses an anagram. anagram of DAD + SAW + FLORAL = WALDORFSALAD; definition: "dish" The answer is WALDORFSALAD.

Unexpectedly, Dad saw floral dish (7,5)

Daily Mail Cryptic #17027 | 1 Across | 2023-02-06 flower