| Not just 'ha ha' |
ROFL |
| Not yet out of the running |
INIT |
| One competing with Uber |
LYFTDRIVER |
| Onetime buffalo-hunting tribe |
OTOE |
| Open, as a purse |
UNSNAP |
| Part of a church organ |
PIPE |
| People in go-karts |
RACERS |
| Physics 101 subject |
ATOM |
| Picture from a parlor, informally |
TAT |
| Pony ___ |
KEG |
| Popular game that needs no equipment |
ISPY |
| Popular video-sharing service |
TIKTOK |
| Project manager's assignment |
TASK |
| Pulp |
MASH |
| Reduces to bits |
RICES |
| Reject romantically ... or a hint to the starts of the answers to 18- and 35-Across, phonetically |
SWIPELEFT |
| Response to a computer crash |
GROAN |
| Ring result, for short |
TKO |
| Show interest romantically ... or a hint to the ends of the answers to 20- and 44-Across, phonetically |
SWIPERIGHT |
| Something done up in an updo |
TRESS |
| Something of little interest, a homeowner hopes |
REFI |
| Steeple topper |
SPIRE |
| Studio sign |
ONAIR |
| Suffix with senior |
ITIS |
| T.S.A. requests |
IDS |
| Tchotchkes |
KNICKKNACKS |
| Tennis champ Mandlikova |
HANA |
| Third-place finisher in 1992 |
PEROT |
| Tiny, informally |
ITSY |
| Verb conjugated suis, es, est, etc |
ETRE |
| Verbal tussle |
SPAT |
| Volunteer for another tour |
REUP |
| Wedding reception staple |
CAKE |
| What a curse might lead to |
PGRATING |
| When repeated, a hip-hop dance |
NAE |
| Winter zone in D.C |
EST |
| Wyatt and Warren of the Old West |
EARPS |
| ___ flask (thermos) |
DEWAR |
| ___ pony |
POLO |
| ___ walk |
PERP |