The most common and most likely answer to this crossword clue is the 6 letter word SLEEVE
I've seen this crossword clue in Financial Times
S
L
E
E
V
E
More clues leading to the result SLEEVE
- Record-holder rolled up in warm weather?
- Carlisle eventually hosts record-holder
- Cover of record by member of The Cardigans?
- Ballesteros catching the French liner
- Possibly hiding-place for ace record-holder
- Record-holder emerging from tussle eventually
- The secret’s up this aisle, everyone discovered
- Record-holder‘s short rest before historic victory
- Record-holder‘s a bit of a jumper
- Bit of gear you might have a hand in
Buddy explains!

The straight part
We know that "record-holder" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case record-holder = sleeve.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 SLEEVE mean?
SLEEVE noun- The part of a garment that covers the arm.
- A (usually tubular) covering or lining to protect a piece of machinery etc.
- A protective jacket or case, especially for a record, containing art and information about the contents; also the analogous leaflet found in a packaged CD.
- A tattoo covering the whole arm.
- A narrow channel of water.
- Sleave; untwisted thread.
- A serving of beer measuring between 14 and 16 ounces.
- A long, cylindrical plastic bag of cookies or crackers.
- A double tube of copper into which the ends of bare wires are pushed so that when the tube is twisted an electrical connection is made. The joint thus made is called a McIntire joint.
- To fit a sleeve to
- (magic tricks) To hide something up one's sleeve.