What does the cryptic crossword clue "No sinners in this parish church? (3,6)" mean?

The wordplay uses a charade (building blocks). ALL (synonym="ALL") + SAINTS (synonym="SAINTS") = ALLSAINTS The answer is ALLSAINTS.

No sinners in this parish church? (3,6)

Guardian Cryptic #29614 | 10 Across | 2025-02-10 flower