Based on the clue 'a dip in the arctic current named for this the wor...', what is the answer?

Based on the clue 'a dimmer works by cutting power for an instant wit...', what is the answer? Based on the clue 'a dimpled ball 168 inches in diameter weighing 16...', what is the answer? Based on the clue 'a dimwitted shut in becomes the toast of washingto...', what is the answer? Based on the clue 'a dinner roll is named this house for a boston hot...', what is the answer? Based on the clue 'a diplomat serving temporarily in place of an amba...', what is the answer? Based on the clue 'a diplomat with less authority than an ambassador', what is the answer? Based on the clue 'a diplomatic emissary of the highest rank', what is the answer? Based on the clue 'a diplomatic official or his briefcase', what is the answer?