The common answer to the “six line stanza” crossword clue is SESTET.

Main answer

  • In standard poetry terminology, a six line stanza is called a sestet.
  • Crossword databases and solver sites list SESTET as the recurring solution for the clue “Six-line stanza.”

Extra crossword context

  • The clue appears frequently in major puzzles such as the New York Times, Universal, WSJ, and others, and in each case the recorded answer is SESTET.
  • Related clues like “Six-line poem” or “Sonnet part” also typically resolve to SESTET , which reinforces it as the go-to fill for this clue.

TL;DR: For a “six line stanza” crossword clue, you almost always want SESTET.

Information gathered from public forums or data available on the internet and portrayed here.