The most common and most likely answer to this crossword clue is the 10 letter word CATHEDRALS
I've seen this crossword clue in Financial Times
C
A
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H
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More clues leading to the result CATHEDRALS
- Halt! Sacred ground where many worship
- Ground had scarlet buildings
- Cathars led building of big churches
- See buildings in various cities
- Hardcastle is converted in several religious places
- Some like Winchester having slated arch redesigned
- Hardcastle is converted in religious places
- Assorted charts lead to places of worship
- Had Clarets beaten two of these in Liverpool?
Buddy explains!

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 CATHEDRALS mean?
CATHEDRALS noun- A big church building, central place for some area.
- The principal church of an archbishop's/bishop's archdiocese/diocese which contains an episcopal throne.
- A large buttressed structure built by certain termites.