Based on the clue 'curiosity killed the cat but this brought it back', what is the answer?

What is referred to by 'cuprum'? Based on the clue 'curacao lies in the southern caribbean about 40 mi...', what is the answer? Based on the clue 'curare is added to this projectile to give it that...', what is the answer? What is referred to by 'cure all'? Based on the clue 'curiosity was shortened to this word for an unusua...', what is the answer? Based on the clue 'curl up on a desert island with his political hist...', what is the answer? Based on the clue 'curly belgian escarole are 3 types of this salad ...', what is the answer? What is referred to by 'curly cabbage cousin 4'?