The crossword solution for the term 'PUT OFF THE TRACKS' is 'DERAIL'. To derail something means to cause it to go off course, or to cause it to fail to progress as planned. This term is often used in the context of a train being derailed, which is when the train is forced off its tracks and can no longer continue on its journey. It can also be used more generally to refer to any plan or project that has been disrupted or prevented from continuing.