The most common and most likely answer to this crossword clue is the 9 letter word TRACEABLE
I've seen this crossword clue in The Times
T
R
A
C
E
A
B
L
E
Buddy explains!
The straight part
We know that "not impossilbe to find" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case not impossilbe to find = traceable.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 TRACEABLE mean?
TRACEABLE adjective- Capable of being traced; possible to track down.