The most common and most likely answer to this crossword clue is the 15 letter word PERSONIFICATION
I've seen this crossword clue in Independent
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More clues leading to the result PERSONIFICATION
Buddy explains!
The straight part
We know that "representation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case representation = personification.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 PERSONIFICATION mean?
PERSONIFICATION noun- A person, thing or name typifying a certain quality or idea; an embodiment or exemplification.
- A literary device in which an inanimate object or an idea is given human qualities.
- An artistic representation of an abstract quality as a human