Composer of a sacred song

The answer to the crossword question “Composer of a sacred song” is PSALMIST. A psalmist is someone who writes or composes psalms, which are sacred songs or hymns typically found in the Book of Psalms in the Bible. Psalms are often used in religious services and are known for their poetic and musical qualities. Therefore, if you come across this crossword question, the answer you should fill in is PSALMIST.