The most common and most likely answer to this crossword clue is the 2 plus 3 plus 6 letter word DO THE DISHES
D
O
T
H
E
D
I
S
H
E
S
Buddy explains!
The straight part
We know that "to perform kitchen duty" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case to perform kitchen duty = do the dishes.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.