Possible Clues:

• Resistance replaces American leader for June 6th landing in swamp
• Place too great a burden on
• Excessive amount
• Burden too heavily
• Excessive demand (on a system)
• Do veal, or otherwise it could be the last straw
• Some of Arthur Hailey's excess baggage
• Put on too much weight to organise a do with lover
• Burden excessively
• Put too great a demand on (electric circuit)