What does the cryptic crossword clue "Abandoned – somewhat absurd – is U.S. education (7)" mean?

The definition is "Abandoned". The wordplay uses a hidden word. Hidden in absur D IS U S ED ucation The answer is DISUSED.

Abandoned – somewhat absurd – is U.S. education (7)

Guardian Cryptic #29669 | 15 Across | 2025-04-15 flower