The most common and most likely answer to this crossword clue is the 4 letter word LATH
I've seen this crossword clue in The Times
L
A
T
H
More clues leading to the result LATH
Buddy explains!
The straight part
We know that "What’s carpentry tool cut" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what’s carpentry tool cut = lath.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 LATH mean?
LATH noun- A thin, narrow strip, fastened to the rafters, studs, or floor beams of a building, for the purpose of supporting a covering of tiles, plastering, etc.
- To cover or line with laths