What does the cryptic crossword clue "Celebration justifies tasty sandwiches (6)" mean?

The definition is "Celebration". The wordplay uses a hidden word. Hidden in "celebration justiFIES TAsty sandwiches" The answer is FIESTA.

Celebration justifies tasty sandwiches (6)

Times Cryptic #28836 | 21 Across | 2024-02-10 flower