Based on the clue 'a collectors item the spiny often speckled shell o...', what is the answer?

Based on the clue 'a collection of the works of this french comic pla...', what is the answer? Based on the clue 'a collection of this new york times columnists wor...', what is the answer? Based on the clue 'a collector of his novels would own copies of the ...', what is the answer? Based on the clue 'a collector of rupees pesos drachmas', what is the answer? Based on the clue 'a college athlete sitting out a year of games pres...', what is the answer? What is associated with: a college football head coach from 1918 to 1931 he hailed from voss norway? What is associated with: a college for these silly circus performers opened in 1968 no i am not a graduate? Based on the clue 'a college in cambridge mass was named for this man...', what is the answer?