Possible Clues:

• Ravaged
• After last month I got married and lost ten per cent
• Wed at start of last month with 10% off
• Getting married after the first of last month meant a loss of ten per cent
• Got married after the first of last month and lost ten percent thereby
• Greatly weakened friend — resolve to finish early and go round
• Chess champion's claim after a number of days drastically scaled down
• Killed many animals turning them inside out
• Rodents turned up in old hat, reduced in number
• When I got married after last month I lost a tenth of what I had