UnScramble this Word: l m u d m e b?

Questions

Which Poet Laureate declared 'I must go down to the sea again, to the lonely sea and sky'?

Who was the first person to complete 'The Adventurer's Grand Slam', of climbing the highest peak on each continent?

Which company, based at Westgate Brewery, Bury St. Edmonds, produces Abbot Ale?

Which Danish philosopher's name translates as 'churchyard'?

What nationality is footballer Lucas Radebe?