The most common and most likely answer to this crossword clue is the 9 letter word EXPLORERS
I've seen this crossword clue in Independent
E
X
P
L
O
R
E
R
S
Buddy explains!

The straight part
We know that "Scouts" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case scouts = explorers.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 EXPLORERS mean?
EXPLORERS noun- One who explores something
- A person who by means of travel (notably an expedition) searches out new information.
- Any of various hand tools, with sharp points, used in dentistry.
- A visual representation of a file system etc. through which the user can navigate.