Possible Clues:

• Day of the week
• Study hard, mostly badly, part of every week
• The Man Who Was — (G. K. Chesterton)
• So light, rucksack initially carried for several hours
• Rash duty (anag)
• Dry as hut (anag)
• Jasper Fforde heroine ___ Next
• Chesterton's man whose child has far to go
• One's always wed before this
• Pithy, like garden feature?