Possible Clues:

• That should cover 9 across, to boot
• Shoes, sandals, boots etc
• Boots, shoes, slippers etc
• Wellington, for example, wrongly ordered to war with foe
• Shoes etc.
• Wellington say, left from Waterloo, destroyed France first
• Eg, shoes, boots
• Shoes, sandals, sneakers, etc
• Wrote of a novel with loafers
• Settle for discussion in which place? Oxford maybe