Related Clues:

• Sounds as if he might give this such a boost
• Sounds like the boy needs medicine if he's backward
• The boost he might give one, by the sound of it
• 'It's for medicine if the boy comes back, by the sound of it (6)'
• The pill, if it's up to buck him up, by the sound of it
• Stimulus or boost
• Charge one penny for boost
• Medication provided when upset is a tonic
• Something adding stimulation
• Stimulus (sounds like a boy!)
• 19, which sounds like a boy's name
• Stimulus — boost
• Nice extra
• Spur — incentive
• Tablet providing uplift and stimulus