The answer to “With 51-Down, 2019 and 2021 Australian Open winner” in the LA Times Crossword

DWN "F" on a test 5 ltr ACR "My Halloween monster costume is so disappointing!"? 10 ltr ACR "Right on!" 4 ltr ACR "The Crying Game" writer/director Jordan 4 ltr DWN "The Favourite" Oscar winner Olivia 6 ltr ACR Accessory that may match cuff links 7 ltr ACR Alaskan gold rush town 4 ltr ACR Apparition who only appears on Halloween in the Golden State? 15 ltr ACR Athletic honor 4 ltr DWN Bellyache 4 ltr DWN Briefing setting 9 ltr DWN Checkbook no. 4 ltr DWN City near Anaheim 4 ltr ACR Cold-sounding commercial prefix 3 ltr ACR Copious 5 ltr ACR Covent Garden solo 4 ltr DWN Credit report blot 4 ltr ACR Depend (on) 4 ltr ACR Dough for pupusas 4 ltr ACR Dragon boat steerer 3 ltr DWN Echidna snack 3 ltr DWN End of the workweek, for some 6 ltr ACR Expectation during a Halloween concert? 13 ltr DWN Fraidy-cat 4 ltr DWN General Assembly fig. 5 ltr DWN Generic surname 3 ltr ACR Got separated from a spooky friend at a Halloween party? 13 ltr DWN Harmonious, in a way 5 ltr DWN Home of Kahului Airport 4 ltr ACR Horn of Africa nation 7 ltr DWN Horologist's piece 3 ltr ACR Intervals 4 ltr DWN Intrinsically 6 ltr ACR Iowa college town 4 ltr ACR Kidney-related 5 ltr DWN Leftovers dish 4 ltr DWN Like some breakfast bars 5 ltr DWN Lovato with the 2025 album "It's Not That Deep" 4 ltr ACR Mattress material 4 ltr ACR Meadow mouthful 3 ltr DWN Medieval museum display 5 ltr ACR Mystery writer? 4 ltr DWN Newspaper section 4 ltr DWN Notice in passing? 4 ltr ACR Omnia vincit __ 4 ltr ACR Oodles 4 ltr DWN Part of a circumference 3 ltr DWN Plastered strips 5 ltr ACR Red inside, maybe 4 ltr ACR Rich soil 4 ltr DWN River that made Achilles (mostly) invincible 4 ltr DWN See 24-Down 4 ltr DWN See 50-Down 5 ltr DWN Seed 6 ltr ACR Shoreline shaper 4 ltr DWN Showing shock 5 ltr DWN Skeptical reply 4 ltr DWN Smooth sailing 4 ltr DWN Sound of spring? 5 ltr ACR Sportages and Tellurides 4 ltr