The most common and most likely answer to this crossword clue is the 10 letter word BELONGINGS
I've seen this crossword clue in The Daily Telegraph
B
E
L
O
N
G
I
N
G
S
More clues leading to the result BELONGINGS
- Individuals storing extensive possessions
- Live with desires for possessions
- People should maintain desire for stuff
- People keeping diary about new stuff
- People purchasing pine stuff
- Have a large holding of Grammar School property
- Leaving adobe with no fuss, desires property
- Clobber living things – desire’s suppressed
- Clobber living things – desire's suppressed
Buddy explains!

The straight part
We know that "stuff" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stuff = belongings.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 BELONGINGS mean?
BELONGINGS noun- The feeling that one belongs.
- (chiefly in the plural) Something physical that is owned.
- Family; relations; household.