What does the cryptic crossword clue "Info a purist's revised for tropical food (7,5)" mean?

The wordplay uses an anagram. anagram of INFO + A + PURIST'S = PASSIONFRUIT The answer is PASSIONFRUIT.

Info a purist's revised for tropical food (7,5)

Daily Mail Cryptic #17207 | 1 Across | 2023-10-16 flower