The most common and most likely answer to this crossword clue is the 6 letter word CHORIC
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The straight part
We know that "Like much church music" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case like much church music = choric.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does CHORIC mean?
CHORIC adjective- Including or involving a Greek chorus
- Intended to be sung by a choir or chorus (e.g. a hymn)