The most common and most likely answer to this crossword clue is the 6 letter word HOLDER
I've seen this crossword clue in Financial Times
H
O
L
D
E
R
More clues leading to the result HOLDER
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 HOLDER mean?
HOLDER noun- A thing that holds.
- A person who temporarily or permanently possesses something.
- One who is employed in the hold of a vessel.
- The defending champion.