| BLUE | Court color at 51-Across, to help spectators see tennis balls clearly |
| COURT | Where to see tennis players woo |
| AUDIENCE | Spectators see German car take top off fence (8) |
| LOOKERSON | Spectators see display of snooker (7-2) |
| OBSERVER | Spectator sees tennis player pursuing former pupil (8) |
| JANISIAN | New York City born singer/songwriter: 2 wds. (More at #51-Across) |
| SHOT | Serve or volley, at 51-Across |
| ENDLESSLY | On and on ... or how to read 18-, 27-, 37- and 51-Across to understand this puzzle's theme? |
| YOYOTRICKS | 17-, 25-, 35-, and 51-Across, to name four |
| LIBERATE | At 51, you need to scold to obtain freedom |
| DALGLISH | 31 24 11 Kenny glad to go back at 51. Scottish? Extremely |
| LIMITED | Although restricted, at 51 I'm going back to Ted (7) |
| JAYBLADES | The Repair Shop host who has been Learning To Read At 51 (3,6) |
| PRINGLES | "I think ___ initial intention was to make tennis balls" (Mitch Hedberg) |
| RECEIVE | What people do to guests or tennis balls (7) |
| IDLER | Turn red at 51, you lazy fellow (5) |
| DILIGENT | Hard-working man's after princess at 51! (8) |
| LIVERY | At 51, it's very distinctive in the way you dress (6) |
| BYRD | Robert who was the longest-serving senator in US history at 51 years |
| LINED | At 51, Ned is looking a bit old |
