What does the cryptic crossword clue "One withdrawing approval for such a fashionable label? (8)" mean?

The wordplay uses a charade (building blocks). DE (synonym="DE") + SIGNER (synonym="SIGNER") = DESIGNER The answer is DESIGNER.

One withdrawing approval for such a fashionable label? (8)

Guardian Cryptic #29553 | 25 Across | 2024-11-29 flower