| ASTROLOGER | A street sweeper ultimately with job taking in old, great river is predictably a harbinger of things to come (10) |
| OMEN | Harbinger of things to come |
| SHIRE | County in old Great Britain |
| TIGRIS | On which great river is Baghdad built? (6) |
| DENY | Reject/Sick of a long shift, the street sweeper... |
| LIBERO | Bristol ordered drug for street sweeper (6) |
| SETONESTEETHONEDGE | Irritated top pupils improved after street sweeper finally removed garbage after vacation |
| CANARY | A renowned singer in its islands but a harbinger of death in mine (6) |
| GREATTIT | Green, yellow and black garden bird whose call is often considered a harbinger of spring and is the largest of the six species within its family (5,3) |
| HERALD | Medieval messenger or officer of arms; an authority on armorial bearings; or, something such as the call of a cuckoo, considered a harbinger of spring, for example (6) |
| OWL | Bird that's a harbinger of death in "Killers of the Flower Moon" |
| MAYFLOWER | A fly mashed in grass cutter: a harbinger of summer? (9) |
| ANEMONE | Wood -; wildflower of ancient deciduous woodlands also known as lady's nightcap; a harbinger of spring (7) |
| SNOWDROP | Woodland, parkland and garden flower, often the first sign of life after the winter and thus a harbinger of spring (8) |
| REDROBIN | Burger chain that shares its name with a harbinger of spring |
| BLACKCAT | Grimly humorous act somehow appearing to be a harbinger of good fortune? (5,3) |
| PETREL | Storm ___ , seabird so named because it was thought to be a harbinger of rough weather (6) |
| STORMPETREL | Small seabird formerly believed to be a harbinger of bad weather (5,6) |
| ROBIN | Bird that's a harbinger of spring |
| NEWLAMB | Yoko leaves noblewoman staggering - a harbinger of spring? (3,4) |
