___ Christie, author of "Murder on the Orient Express," who often plotted ideas in her bathtub while eating apples

Baseball headgear3 Corporate engineering head (anagram of "cot"): Abbr.3 Mom's sister4 ___ pressure (influence of friends)4 Sharp punch in boxing3 ___ Joyce, author of "Ulysses," who preferred using crayons for drafting his manuscripts5 Get out of bed5 Big ___ (clock tower of London)3