Possible Clues:

• One fast-moving girl, one with long strides
• Go to collect everything for each one making rapid progress
• Girl one with long slow strides? Much quicker mover
• Girl, learner, getting rope disentangled for jockey?
• Sprinter needing endless amount of liquid and exercise before run
• It's 'all go' possibly for each fast mover
• Old military word for an aide-de-camp
• Cut short when lager is swilled around at the fairground attraction