Stumped on a Sibilant Summons? Crack the Crossword Here!

The answer to the crossword question “Sibilant summons” is PSST. Sibilant refers to sounds that are produced with a hissing or buzzing quality, usually with letter S or similar sounds. In this case, PSST is a commonly used expression to catch someone’s attention or to signal secrecy by making a quiet hissing sound. It is typically used to get someone’s attention without drawing much attention from others. So, in the crossword context, “Sibilant summons” is referring to the act of uttering PSST to signal or beckon someone quietly.