The most common and most likely answer to this crossword clue is the 6 letter word JUICER
I've seen this crossword clue in The Guardian
J
U
I
C
E
R
More clues leading to the result JUICER
Buddy explains!

The straight part
We know that "kitchen appliance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kitchen appliance = juicer.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 JUICER mean?
JUICER noun- A manual or electrical device used for rendering the juice of fruits or vegetables.
- A person who extracts juice for consumption.
- A (citrus) reamer.
- One who uses steroids.
- An alcoholic.
- An electrician.