Related Clues:

• With 29-Down, greeting for Mrs. Kowalski in 'A Streetcar Named Desire'
• Sibilant "Hey!"
• When repeated, a court cry
• Cat comment
• Soft "Hey!"
• "Psst!"
• Sound before 'Your fly's open'
• Cry of distress
• 'Over here'
• Start of a whispered comment, perhaps
• Subtle 'yo!'
• ''You there!''
• 'Hey . . . over here!'
• Sibilant signal
• ''There, it's done!''