The most common and most likely answer to this crossword clue is the 8 letter word BANDAGED
B
A
N
D
A
G
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D
More clues leading to the result BANDAGED
Buddy explains!

The straight part
We know that "Dressed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dressed = bandaged.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 BANDAGED mean?
BANDAGED verb- To apply a bandage to something.