The most common and most likely answer to this crossword clue is the 9 letter word SIDEROADS
I've seen this crossword clue in The Daily Telegraph
S
I
D
E
R
O
A
D
S
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 SIDEROADS mean?
SIDEROADS noun- A lesser road leading off a main road.