Is this your crossword clue?
"tool" is also used as a crossword clue. If that's what you saw, the answer is often implement (9 letters).
Definitions
the means whereby some act is accomplished
Used in a sentence
“Several prehistoric tools, including a stone ax, were found during the dig.”
“A screwdriver is a tool that no household should be without.”
“A stapler is a tool for attaching papers to others.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer3 curated clues
01“Hammer or wrench”4 letters
02“Useful implement”4 letters
03“Wrench or hammer”4 letters
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