The most common and most likely answer to this crossword clue is the 9 letter word EPITOMISE
I've seen this crossword clue in Independent
E
P
I
T
O
M
I
S
E
More clues leading to the result EPITOMISE
- Abstract poem, about to be dropped, is put in book
- Sum up chapter cut from historic volume one’s penned
- Sum up fantastic times I hope with no end of relish
- Typically show detailed epic tome in sex
- Condense mostly impressive book describing centre of Bratislava
- Perfectly exemplify poem — it is peculiarly English
- To sum up, epic tomb in sea’s foundations washed away
- Typify in motion – empties 10
Buddy explains!

The straight part
We know that "Abstract" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case abstract = epitomise.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 EPITOMISE mean?
EPITOMISE verb- To make an epitome of; to shorten; to condense.
- To be an epitome of.