The most common and most likely answer to this crossword clue is the 3 plus 6 letter word CAN OPENER
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Buddy explains!

The straight part
We know that "kitchen tool" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kitchen tool = can opener.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 CAN OPENER mean?
CAN OPENER noun- A device used to open tin cans, usually by slicing the lid off.
- A shoulder hit to the chest, usually accomplished while moving from a crouched to a standing position.