What does the cryptic crossword clue "Pressed De Niro to perform (6)" mean?

The definition is "Pressed". The wordplay uses an anagram. anagram of DE + NIRO = IRONED; definition: "Pressed" The answer is IRONED.

Pressed De Niro to perform (6)

Independent Cryptic #11875 | 12 Across | 2024-10-31 flower