The most common and most likely answer to this crossword clue is the 8 letter word ORNAMENT
I've seen this crossword clue in The Guardian
O
R
N
A
M
E
N
T
More clues leading to the result ORNAMENT
- What enhances appearance of Lorna, men think
- Decorate or give title to National Trust
- Other ranks nominate every other part of unit for decoration
- Decorative item of heraldic gold: call National Trust
- . Decorationās gold handle not hollowed out
- Famous person not losing heart with other ranks on deck
- Love remnant creating 8?
- Trim gold star on books
- Our unit oddly has reputation for interior decoration
- Tenor surprised to receive war decoration
Buddy explains!

The straight part
We know that "8" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case 8 = ornament.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 ORNAMENT mean?
ORNAMENT noun- An element of decoration; that which embellishes or adorns.
- A Christmas tree decoration.
- A musical flourish that is unnecessary to the overall melodic or harmonic line, but serves to decorate or "ornament" that line.
- (in the plural) The articles used in church services.
- A characteristic that has a decorative function (typically in order to attract a mate)
- To decorate.
- To add to.