Possible Clues:

• A skip in middle of night filled up
• Heading home, wearing silver in profusion
• That's what a leap year won't be a-doing
• Plentiful gain, possibly, over the border
• Perhaps a spring in abundance
• Rich one leaping
• Enough to make one spring all over the place
• A connection around university that's widely evident
• Existing in large numbers
• One obliged to tipple gin in plenty