Any further ideas or clues welcomed for
34) Pirate's underclothes horribly vile, right ?(4,4,6)
78) A dubious character but confident man of letters (6,5)
83) Moved very quickly back - bot one got caught with a rude book! (7)
87) At the start I looked in all dictionaries and just had a series of woes! (5)
All answers are literature-themed
Many thanks