The most common and most likely answer to this crossword clue is the 9 letter word TURN-OFFS
T
U
R
N
-
O
F
F
S
More clues leading to the result TURN-OFFS
Buddy explains!

The straight part
We know that "exits from highway" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case exits from highway = turn-offs.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 TURN-OFFS mean?
TURN-OFFS noun- Something that repulses, disgusts, or discourages, especially sexually.
- A road where one turns off, such as a motorway exit.