Crossword Genius

Tool (7)

Ross

'tool' is the definition.
(spanner is a kind of tool)

This is all the clue.

(Other definitions for spanner that I've seen before include "that might cause difficulty in the works" , "murder weapon" , "Tool for fastening nuts" , "Tool for gripping nut" , "Bad thing to have in the works!" .)

I've seen this clue in the Evening Standard, The Star Tribune, The Independent, The Telegraph and The Guardian.
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