The most common and most likely answer to this crossword clue is the 8 letter word STONIEST
I've seen this crossword clue in The Daily Telegraph
S
T
O
N
I
E
S
T
More clues leading to the result STONIEST
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 STONIEST mean?
STONIEST adjective- As hard as stone.
- Containing or made up of stones.
- Of a person, lacking warmth and emotion.
- Of an action such as a look, showing no warmth of emotion.
- Short for stony broke: without any money.