The most common and most likely answer to this crossword clue is the 3 plus 4 plus 6 plus 2 letter word CAN SUCH THINGS BE
C
A
N
S
U
C
H
T
H
I
N
G
S
B
E
Buddy explains!

The straight part
We know that "is this even possible?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case is this even possible? = can such things be.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.