UnScramble this Word: p r a s i x s a?

Questions

Which character in "The Avengers" drove a Lotus Elan?

Name the little elephant in books by Jean de Brunhoff?

Which word, taken from the French, translates literally as 'rotten pot'?

What, in the second line of Longfellow's poem, stands "Under a spreading chestnut tree"?

Which natural phenomenon can be measured on the Mercalli scale?