The most common and most likely answer to this crossword clue is the 6 letter word BORDER
I've seen this crossword clue in The Guardian
B
O
R
D
E
R
More clues leading to the result BORDER
- British directive for march
- Frontier having British command
- . British command having the edge
- Bound to get second class degree
- Margin of book, its left edge on top
- Plot of book series
- Edging in front of brown Fiat
- Practice needed after Bangladesh’s opener gets an edge
- Bishop with book in bed
- Soundly, one sleeps in school bed
Buddy explains!

The straight part
We know that "Edging" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case edging = border.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 BORDER mean?
BORDER noun- The outer edge of something.
- A decorative strip around the edge of something.
- A strip of ground in which ornamental plants are grown.
- The line or frontier area separating political or geographical regions.
- Border morris or border dancing; a vigorous style of traditional English dance originating from villages along the border between England and Wales, performed by a team of dancers usually with their faces disguised with black makeup.
- A string that is both a prefix and a suffix of another particular string.
- To put a border on something.
- To form a border around; to bound.
- To lie on, or adjacent to, a border of.
- To touch at a border (with on, upon, or with).
- To approach; to come near to; to verge (with on or upon).