The answer to “Did I just hear what I think I heard?” in the LA Times Crossword

$2 worth of nickels e.g. 4 ltr 5K for one 4 ltr Act with feeling 5 ltr Bakers protection 4 ltr Bestest 4 ltr Brontë governess 4 ltr Bumping heads 4 ltr Cannot __: slangy expression of mock horror 5 ltr Carriers powered by pantographs and overhead lines 5 ltr Cereal shapes 5 ltr China Falls From Top Spot e.g. 12 ltr Citi Field MLBer 5 ltr Civil rights leader Wilkins 3 ltr Clevelands lake 4 ltr Conduit shape 3 ltr Cone-bearing tree 3 ltr Cozy alcove 4 ltr Dagger handle 4 ltr Dashiell contemporary 4 ltr Diner slice 3 ltr Disreputable 5 ltr Drink carelessly 5 ltr Early operating system 4 ltr Emotionless 5 ltr Final Finalist Finally Arrives e.g. 12 ltr Flared dress style 5 ltr Folded fare 4 ltr Frame : bowling :: __ : curling 3 ltr Genesis brother 4 ltr Genesis twin 4 ltr Gimlis weapon in The Lord of the Rings 3 ltr Gives birth to 3 ltr Goes back and forth 7 ltr Healthy side 5 ltr Highlander of ancient Peru 4 ltr Julys namesake 6 ltr Leaves unnoticed 9 ltr Like Vikings 5 ltr Local Couple Makes a Commitment e.g. 15 ltr Lotion additive 4 ltr Love letters? 4 ltr Marriage partners 7 ltr Meat product with a museum in Minnesota 4 ltr Mine passage 5 ltr Musical endings 5 ltr NYSE investment opportunities 4 ltr Nephew of Donald Duck 5 ltr Olympic skater Cohen 5 ltr One-named singer whose surname is Adkins 5 ltr Open-air rooms 5 ltr Peninsular Arab state 5 ltr Pesto option 7 ltr Photographer Embraces Traditional Darkroom Techniques” e.g. 15 ltr Predatory dino 4 ltr Prefix with meter 3 ltr Psych (up) 3 ltr Puts one foot in front of the other 5 ltr Radical Optimism singer Dua 4 ltr Rodent proof? 7 ltr