Related Clues:

• Sound of fright
• Night sound?
• Piece of pi?
• Sound necessary to get 'high'?
• Sound necessary to get "high"?
• iPod sound?
• Vowel sound of "bite"
• iPhone feature
• Second in line?
• "Time" has one; "Tim" hasn't
• End of July by the sound?
• It makes a Brit bright
• iPad feature?
• Sound of silence?
• Eye, to the ear