Based on the clue 'before his own death this pop artist said dying is...', what is the answer?

Based on the clue 'before his late night gig he co hosted the man sho...', what is the answer? Based on the clue 'before his life sentence for nazi collaboration ph...', what is the answer? Based on the clue 'before his move to chrysler he developed the linco...', what is the answer? Based on the clue 'before his of arabia days he built a raft in defia...', what is the answer? Based on the clue 'before his rivalry with jonas salk he developed a ...', what is the answer? Based on the clue 'before his steamboat success robert fulton built t...', what is the answer? What is associated with: before his time at no 10 downing street he won election in 1983 as the mp for dunfermline east? Based on the clue 'before his time on the national stage seward was b...', what is the answer?