The most common and most likely answer to this crossword clue is the 10 letter word MILLSTONES
I've seen this crossword clue in The Daily Telegraph
M
I
L
L
S
T
O
N
E
S
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 MILLSTONES mean?
MILLSTONES noun- A large round stone used for grinding grain.
- A coarse-grained sandstone used for making such stones; millstone grit.
- Often in a millstone round one's neck (referring to Matthew 18:6 in the Bible): a heavy responsibility that is difficult to bear.