The most common and most likely answer to this crossword clue is the 5 letter word CLADS
C
L
A
D
S
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The straight part
We know that "Dresses" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dresses = clads.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 CLADS mean?
CLADS verb- (past tense clad) To clothe.
- (past tense clad or cladded) To cover (with insulation or another material); to surround, envelop.
- (figuratively) To imbue (with a specified quality)