| INVAIN | Without success or a result (2,4) |
| PAININTHENECK | Annoyance...or a result of watching a long tennis match? |
| PARFORTHECOURSE | Perfect hours, or a result good for clubs as usual (3,3,3,6) |
| SELLOUT | A show or other event for which all tickets have been purchased; a commercial success; or, a betrayal of one's principles for financial gain (4-3) |
| ACHIEVES | Attains success or a desired result |
| VAINLY | Without success |
| SUMMIT | Apex or acme of anything such as a mountain or of success; or, an assembly of government leaders (6) |
| ATTILA | Endless hunt, namely, to sack Rome was his quest, without success (6) |
| FLYING | With 35-Across, complete success ... or a hint to 18-, 23-, 46- and 51-Across |
| ITLLNEVERFLY | "That has no chance of success," or a fact about the start of each starred clue's answer |
| TROPHY | A memorial of success, or glory, etc (6) |
| WISHES | An expression of desire for someone's good fortune, happiness, success or welfare; or, one's hopes and wants generally (6) |
| HEYDAY | The time of greatest success or prosperity (6) |
| STREAK | Run of success or luck (6) |
| SWIM | A natatorial act referred to, with its opposite "sink", in a phrase alluding to success or failure; a condition of dizziness, giddiness or swoon; or, any gliding, graceful or smooth motion (4) |
| PIVOT | A fulcrum, pin or shaft on which something turns; or, a central person or thing, essential to the success or progress of any undertaking (5) |
| GODWINSON | Harold was a man that was sponsored without success (9) |
| DAKAR | Naturalist without success tours a capital in Khartoum, an African city (5) |
| SEARCHINVAIN | Look without success for his cavern in a fog (6,2,4) |
| LEAN | Arsenal's back four's rejigged without success (4) |
