UnScramble this Word: n i d e r d u l?

Questions

A powerful tractor with a curved blade at the front used for clearing ground?

British novelist best known for The Cruel Sea?

GEOGRAPHY City and administrative centre of an English county situated on the North Sea anmd The Wash site of an 11th century cathedral?

A liqueur made red, acid-tasting cherries?

Woodwind instrument with a double reed mouthpiece?