What does the cryptic crossword clue "Well-known passage from mystic on I Ching (6)" mean?

The definition is "Well-known". The wordplay uses a hidden word. Hidden answer (passage from) in [myst] IC ON I C [hing]. The answer is ICONIC.

Well-known passage from mystic on I Ching (6)

Independent Cryptic #10874 | 7 Down | 2021-08-19 flower