| THESKYSTHELIMIT | Exhortation for an optimist (and a hint to 17-, 25-, and 44-Across) |
| THINKBIG | Be an optimist and plan in a grandiose manner? (5,3) |
| WINWINSITUATION | Circumstance that's good for everyone ... with a hint to 17-, 25- and 44-Across |
| THESOUNDOFMUSIC | 1965 Julie Andrews film, and a phonetic hint to the ends of 17-, 25- and 44-Across |
| FOURMASTER | Spooner's exhortation for extra effort and greater speed - it needs plenty of canvas (4-6) |
| BECALM | Exhortation for a panicky person |
| PLAYAROUND | Dally, and a literal hint to 17-, 25-, 37- and 50- Across |
| SILVERLINING | ... for an optimist? |
| BULLPEN | Ballpoint for an optimist? |
| ROSIE | Good name for an optimist? |
| HOPE | Thing for an optimist |
| GLASS | Something that's half-full for an optimist |
| ASTHEWORLDTURNS | Soap opera that ran for 54 years (and a hint to 17-, 25-, and 43-Across) |
| CLOSINGARGUMENT | Courtroom conclusion (and a hint to 17-, 25-, and 43-Across) |
| HIDDENFEE | Feature of some contracts, and a hint to 17-, 25- and 41-Across |
| BEHINDBARS | In jail (and a hint to 17-, 25-, and 41-Across) |
| YEASAYER | Term for an uncritical person who habitually agrees or assents to proposals enthusiastically; or, an optimist generally (3-5) |
| ITJUSTAINTRIGHT | "That's so unfair!"...or a hint to 17-, 25- and 43-Across, in three other senses |
| PUTINAGOODWORD | Recommend, with "for," and a hint to the start of 20-, 25- and 44-Across |
| STARRY | Wait under a second with the eyes of an optimist (6) |