Related Clues:

• 'Go! Go! Go!'
• "Give 'er some gas!"
• Put pedal to metal
• Drug found at university - put one's foot down
• Put one's foot down, in a way?
• Move it along
• Taking drug (on drugs), put your foot down
• 'Hit the gas!'
• Work faster, taking amphetamine at university
• Used pep, ordered to do this?
• Get faster
• Dogs crossing river, rising - go faster!
• Amphetamine dearer than before? Make rate even higher
• Move more quickly
• High on drug, put foot down