The most common and most likely answer to this crossword clue is the 7 letter word HATBAND
I've seen this crossword clue in The Daily Telegraph
H
A
T
B
A
N
D
More clues leading to the result HATBAND
- Balmoral, say, soundly vetoed one ringing the crown
- Panama usually has one marking its borders
- Applause for bat playing in — or maybe for bowler
- One adds decoration to a tile
- Bowler may have one in hand taking bat out
- d Decoration sported by a boater?A barely cryptic definition of the decoration around a boater.
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 HATBAND mean?
HATBAND noun- A band fastened around a hat.