The answer to “Clever notion” in the LA Times Crossword

"Allow me" 4 ltr "Gnarly" and "Gabriela" girl group 7 ltr "How gross!" 3 ltr "Mamma Mia!" star Seyfried 6 ltr "Pass" 3 ltr "Pinocchio" goldfish 4 ltr "Songversation" singer India.__ 4 ltr "Understand?" 3 ltr "__: Ares" 4 ltr Accordion features 6 ltr Automaker headquartered in Ingolstadt 4 ltr Backup strategy 5 ltr Bad-mouth 3 ltr Bakery serving slices 7 ltr Banks on many covers 4 ltr Barely sufficient 5 ltr Biggest holiday in Vietnam 3 ltr Billionth: Pref. 4 ltr Bluegrass strings 5 ltr Braid 5 ltr Bridal boutique array 7 ltr Bridal wear in Bangladesh 5 ltr Bridge distance 4 ltr Brief periods of time 7 ltr Burning question? 12 ltr Buy high and sell low, e.g. 3 ltr Calculus pioneer Newton 5 ltr Campaign funding org. 3 ltr Cap'n Jazz genre 3 ltr Capital of Amer. 3 ltr Casual slacks 6 ltr Catch 3 ltr Checks for fit 7 ltr Cheese in some bagels 6 ltr Community spirit 5 ltr Corkboard pin 4 ltr Corporate title abbr. 4 ltr Critter who snoozed and lost 4 ltr Crop threats 5 ltr Crowning point 4 ltr Diamond side 5 ltr Dish with bubbling broth 6 ltr Don vestments 6 ltr Double-cross 6 ltr Drop, as an album 7 ltr Entreaty 4 ltr Exercises that work quads and glutes 6 ltr Feline with a striped coat 8 ltr Fellow student 4 ltr First Nations people of Canada 4 ltr First question? 12 ltr Flood barrier 5 ltr Forever and ever 4 ltr Forgo 5 ltr French kin of a dosa 5 ltr Frequent flier? 4 ltr Fuzz on a rock 4 ltr Genealogy research aid 7 ltr Get on in years 3 ltr