Related Clues:

• It puts veracity to the test
• German songs including moving octet which hopes to reveal invention
• Polygraph's electrode might need tightening with it
• One should identify the false wind octet among art-songs
• Editor elect (anag.)
• One invention designed to show up others?
• Truth-finding machine
• Octet composed among German songs that should tell stories?
• Interrogation device
• Expose falsehood with this or let deceit run free
• Credibility assessment tool
• Kind of test with unproven accuracy
• Is one tasked with picking up pork pies?
• Sensitivity reader for fiction?