What does the cryptic crossword clue "Cabbage white is under ripe bananas (6)" mean?

The definition is "Cabbage white". The wordplay uses an anagram. anagram of IS + RIPE = PIERIS; definition: "Cabbage white" The answer is PIERIS.

Cabbage white is under ripe bananas (6)

Independent Cryptic #11723 | 22 Down | 2024-05-07 flower