The most common and most likely answer to this crossword clue is the 6 letter word AORTIC
A
O
R
T
I
C
More clues leading to the result AORTIC
Buddy explains!
The straight part
We know that "Arterial" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case arterial = aortic.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 AORTIC mean?
AORTIC adjective- Of or pertaining to the aorta or the aortic valve.