The most common and most likely answer to this crossword clue is the 9 letter word DISPLAYED
I've seen this crossword clue in The Sunday Telegraph
D
I
S
P
L
A
Y
E
D
More clues leading to the result DISPLAYED
Buddy explains!

The straight part
We know that "shown" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case shown = displayed.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 DISPLAYED mean?
DISPLAYED verb- To show conspicuously; to exhibit; to demonstrate; to manifest.
- To make a display; to act as one making a show or demonstration.
- To extend the front of (a column), bringing it into line.
- To make conspicuous by using large or prominent type.
- To discover; to descry.
- To spread out, to unfurl.
- Spread out; unfurled.
- Spread open to view; shown off.
- With wings unfurled.
- Set with lines of prominent type interspersed, to catch the eye.