The most common and most likely answer to this crossword clue is the 7 letter word RUMPLED
I've seen this crossword clue in The Times
R
U
M
P
L
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D
More clues leading to the result RUMPLED
Buddy explains!

The straight part
We know that "Scruffy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case scruffy = rumpled.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 RUMPLED mean?
RUMPLED verb- To make wrinkled, particularly fabric.
- To muss; to tousle.
- Wrinkled or crumpled