Yellowish-white colour (5)
(Other definitions for cream that I've seen before include "'There are more ways of killing a cat than choking it with ....." , "best people" , "Best - substitute for shaving soap" , "Top or best part" , "Elite; off-white" .)
(Other definitions for ivory that I've seen before include "Elephant tusk material" , "Yellowish white - material from tusks" , "Substance in elephant tusks" , "Some hunt this" , "Piano-key" .)