What does the cryptic crossword clue "Crude relic that's not entirely ruined (8)" mean?

The definition is "ruined". The wordplay uses a hidden word. Hidden in "cruDE RELIC That's not entirely ruined" The answer is DERELICT.

Crude relic that's not entirely ruined (8)

Guardian Cryptic #29072 | 25 Across | 2023-05-17 flower