Related Clues:

• "Buzz" or "hiss," e.g.
• *Words that come from clams
• "Buzz" or "pop," e.g
• Use of words whose sound suggests the sense
• Io - a moon a poet struggled with, needing a term that sounds right
• Use of words sounding as what they describe
• Word such as "woof"
• Sound-imitating word
• Thud may be heard, but not on a rug down there?
• Use of words sounding like what they name
• Ding-a-ling or ding-dong
• Formation of words sounding like what they mean
• Word sounded out by the ends of 20-, 35- and 40-Across
• Turn up for yoga class, did you say? Boo and hiss!