Related Clues:

• Hay, by the sound of it, this might 5 down in the river for the magician
• This follows the sound of the hay as if by magic
• Hey! That's a poster for the magician
• 'By the sound of it, it's under the hay for the magician (6)'
• By the sound of it this might follow the hay while the rest of it is in the river
• 'Stop re this after the bay, by the sound of it, for a surprise (6)'
• For the magician after the hay, by the sound of it
• Word before a transformation
• Scored very quickly?
• "Shazam!"
• Boom-causing, perhaps
• Quickly get what's left in the post office
• "___ change-o!"
• Quick pasta sauce keeps the runs in
• Tear up poster very quickly