What does the cryptic crossword clue "Repetition of poetic device everyone rejected (9)" mean?

The definition is "Repetition". The wordplay uses a deletion. ITERATION (deletion) = ITERATION; definition: "Repetition" The answer is ITERATION.

Repetition of poetic device everyone rejected (9)

Times Cryptic #28303 | 27 Across | 2022-05-30 flower