Possible Clues:

• 'The difference between exports and imports (5,3)'
• Imports minus exports
• Commercial imbalance
• The difference noticed when we aren't selling enough
• The difference in value between imports and exports
• Excess of imports over exports
• Economic deficit a snare into which the old have fallen
• That by which imports outvalue exports
• Pat Grade corrected financial imbalance
• Deal with space created by excess of imports