What does the cryptic crossword clue "What you 17 for is relevant bar one (6)" mean?

The wordplay uses a deletion. APPL (synonym="APPL") + ES (synonym="=is relevant, pertains; “bar one (=I") = APPLES The answer is APPLES.

What you 17 for is relevant bar one (6)

Independent Cryptic #11711 | 4 Down | 2024-04-23 flower