| DELIUS | English composer of On Hearing the First Cuckoo in Spring |
| FREDERICKDELIUS | English composer noted for his tone poem On Hearing the First Cuckoo in Spring (9,6) |
| PHENOLOGY | Study of seasonal changes and timings throughout nature's calendar such as the first cuckoo call in spring, first flowers/fruits and leaf fall (9) |
| KNEEL | Show obeisance hearing the first man on the moon? (5) |
| BEDDINGWELLS | Aquifers that water the roses (on hearing the nuptial chimes, say)? |
| PLEA | Turn pale on hearing the excuse (4) |
| ELECTORALROLL | Choose spoken part on hearing the constituent's register (9,4) |
| SIGHS | Sounds relieved on hearing the dimensions (5) |
| COCHLEA | Spiral cavity of the inner ear in which the sensory organ of hearing, the organ of Corti, is located (7) |
| ANCESTRAL | First appearance of cuckoo in a nest - bird ousting one as of old |
| STRATOSPHERE | Spotters hear cuckoo in part of the sky (12) |
| TRANSEPT | Net traps cuckoo in wing of the church (8) |
| INANDOUT | Like a cuckoo in the clock, it's a quick trip to the local shop! (2,3,3) |
| LESOTHO | The French shoot cuckoo in South African enclave (7) |
| NOAHSARK | Shark on with a cuckoo in floating zoo? (5,3) |
| NEST | Cuckoo in the ___, unwelcome intruder (4) |
| HOLDONTOYOURHAT | "Get ready!" ... or what to do upon hearing the ends of the answers to the starred clues? |
| TIGRESS | Wild woman hearing the call of the river |
| MEDDLES | Hearing the sound of gongs, pokes one's nose in |
| RIFTS | First cuckoo causes disagreements (5) |
