The most common and most likely answer to this crossword clue is the 7 letter word FREEZER
I've seen this crossword clue in The Daily Telegraph
F
R
E
E
Z
E
R
Buddy explains!

The straight part
We know that "Kitchen item" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kitchen item = freezer.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 FREEZER mean?
FREEZER noun- An appliance or room used to store food or other perishable items at temperatures below 0° Celsius (32° Fahrenheit).
- The section of a refrigerator used to store food or other perishable items at a temperature below 0° Celsius (32° Fahrenheit).
- (Parkinson's disease) A Parkinson's disease patient that experiences freezing of gait (FOG) episodes.