The most common and most likely answer to this crossword clue is the 8 letter word EPISTLES
I've seen this crossword clue in The Sunday Telegraph
E
P
I
S
T
L
E
S
More clues leading to the result EPISTLES
- Letters in stone found in English buildings
- Long communications spies let loose
- PS set lie out in these
- Letters of stone seen in European houses
- Let spies disrupt lines of communication
- Letters seen in stone in English buildings
- Record fibres in letters
- Missives from Eastern Saint used in masses
- European runs on mountains carrying fifty letters
Buddy explains!
The straight part
We know that "letters" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case letters = epistles.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 EPISTLES mean?
EPISTLES noun- A letter, or a literary composition in the form of a letter.
- One of the letters included as a book of the New Testament.