Printer’s Devilry (PD)
A Printer’s Devilry clue is a passage from which the printer has removed a hidden answer, closing the gap, taking liberties sometimes with punctuation and spelling, but not disturbing the order of the remaining letters.
For the clue Nice one — Cyril, let’s have a note, the word HERON is the answer that has been removed. When it has been reinstated we have: Nice one, Cyril, let’s have another one.
Each passage, when complete, makes some sort of sense.