The most common and most likely answer to this crossword clue is the 6 letter word ROBING
I've seen this crossword clue in The Guardian
R
O
B
I
N
G
More clues leading to the result ROBING
Buddy explains!

The straight part
We know that "getting dressed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case getting dressed = robing.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 ROBING mean?
ROBING verb- To clothe; to dress.
- To put on official vestments.
- The act of putting on ceremonial clothing.
- (usually plural) The trimmings around the neck and bodice of a gown.