Lots of good vocabulary here: LEACH, GINUP, ALEUT, SCUT. The spell check in this blog editor doesn't even think scut's a word; it is underlined in edit mode as if it were an error. Ha.
We were INLUCK with several fun clues and answers including 27D. Fast results? (PANGS), 16A. Where lines are drawn? (ARTI), 34A. Gone badly? (AWOL), and 37A. British thrones? (LOOS),
It was nice to see local favorite NECCO in the grid. According to the Wikipedia. Necco produced its one trillionth Necco Wafer candy in the fall of 2010, In another pleasant surprise, the great Phil OCHS popped up at 38A. ("Draft Dodger Rag" singer). Some recent events make one miss his voice more than ever. :|
I'll also say YEA to all the European flair: NEUER, EPEE, ARNO, EUROS, PIAF, TREVI. Good TIMES.
To cavil a bit, I don't Cotton Bowl to this puzzle's spelling of 46D. Laughter sound (TEHEE). If the T part is to be pronounced like the H part, why not spell them the same way? And don't say 1517 years of language history. And if you are meant to pronounce the first part with a short e, don't. It just might make me swear a big, big D.