What does the cryptic crossword clue "Female sprayed oil over leaf of paper (5)" mean?

The definition is "paper". The wordplay uses an anagram. anagram of OIL + OF = FOLIO; definition: "paper" The answer is FOLIO.

Female sprayed oil over leaf of paper (5)

Daily Mail Cryptic #17514 | 18 Across | 2024-12-19 flower