The most common and most likely answer to this crossword clue is the 12 letter word ILLUSTRATION
I've seen this crossword clue in Financial Times
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More clues leading to the result ILLUSTRATION
- Bad American art turned into rough sketch?
- Inside fancy restaurant, for example
- One with desire to eat large helping, for example
- Example: a picture accompanying text
- Image of Troy inspiring desire — fantastic art
- Picture being sick with desire sharing large part
- Poorly American with temperature getting fixed portion of food, for example
- Plate with one large helping containing hunger
- Bad appetite sharing large helping on plate
- Setter craving food eats a bit of lasagna, for example
Buddy explains!

The straight part
We know that "Example/a picture accompanying text" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case example/a picture accompanying text = illustration.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 ILLUSTRATION mean?
ILLUSTRATION noun- The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
- That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.
- A picture designed to decorate a volume or elucidate a literary work.
- A calculated prevision of insurance premiums and returns (life insurance)