Possible Clues:

• Holds back
• Keeps in check
• Keeps under control or within limits
• Checks
• It's the remainder, not for drought, that holds one back
• What is left is wet unless one keeps it back
• Holds back from occurrence of poor weather during vacations
• Holds back the others after monsoon season
• Takes refresher course with initial sangfroid, but then holds back
• What's left is wet, so one holds it back