The Mini Answers NYT - September 04, 2015

across

• Instrument in many an electronic dance song Crossword Clue

  Reveal Answer

  SYNTH

• Suffix with Marx or sex Crossword Clue

  Reveal Answer

  ISM

• Exam with three 800-point sections Crossword Clue

  Reveal Answer

  SAT

• See 4-Across Crossword Clue

  Reveal Answer

  WHEEL

• With 7-Across, popular sing-along song with the lyric "Rock me momma like a southbound train" Crossword Clue

  Reveal Answer

  WAGON