Related Clues:

• Postpone, defer
• Lock and key upset lag
• Defer; make late
• Electronic effect added to music
• Echo returning note ... right
• Sound prolongation takes long note right to the top
• Device producing musical echoes
• Cause to be late
• Hold off on
• Musical device producing echoes
• Hold-up
• Temporise
• Put off backing American university after initial doubt
• Note the lock has been put back after the hold-up
• Hold-up while the lady unknots string in