The most common and most likely answer to this crossword clue is the 8 letter word ROADKILL
I've seen this crossword clue in Financial Times
R
O
A
D
K
I
L
L
More clues leading to the result ROADKILL
Buddy explains!
The straight part
We know that "Scoff on the way" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case scoff on the way = roadkill.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 ROADKILL mean?
ROADKILL noun- The killing of an animal by a road vehicle
- The animal(s) so killed
- (by extension) a helpless victim