A low "Yo!"

PSST

["Here’s a helpful hint for the clue \"A low 'Yo!'\":\n\n*\"It’s the sound you might make to quietly get someone’s attention without saying a word.\"*\n\nThis hint guides the solver toward the idea of a whispered or hushed call, making it easier than the original clue while still requiring a bit of thought."]

The clue "A low 'Yo!'" leads to the answer "PSST" through a combination of wordplay and interpretation. - **"Yo!"** is an informal greeting or exclamation, often used to get someone's attention. - **"A low"** suggests that the greeting is being spoken quietly or softly, implying a hushed or whispered tone. - **"PSST"** is an onomatopoeic representation of a quiet, hissed sound used to call someone discreetly, fitting the idea of a "low" or subdued "Yo!" Thus, the clue cleverly hints at the answer by describing a whispered version of an attention-grabbing sound.