The most common and most likely answer to this crossword clue is the 10 letter word PHILISTINE
I've seen this crossword clue in The Daily Telegraph
P
H
I
L
I
S
T
I
N
E
More clues leading to the result PHILISTINE
- Uncultivated Greek character given inventory in English
- Woman on telephone by river, say — an uncultured type
- Greek character first in queue sees barbarian
- Greek character first in queue as barbarian
- Greek character, first to get into row, a barbarian!
- Unrefined report of horses current in north-east
- No artist makes high table in softwood
- Like Goliath, Matilda’s good for Spooner
- Little fellow with one stone in battle ultimately accounting for him?
- I sit in and help out someone far from intellectual
Buddy explains!

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 PHILISTINE mean?
PHILISTINE noun- A person who is ignorant or uneducated; specifically, a person who lacks appreciation of or is antagonistic towards art or culture, and who has pedestrian tastes.
- Ignorant or uneducated; specifically, lacking appreciation for or antagonistic towards art or culture, and having pedestrian tastes.