| POISONIVY | The irritating plant Toxicodendron radicans (6,3) |
| WINGS | The flapping of their ___ makes the irritating buzzing sound that we hear at night |
| TRUMPETVINE | With some brass, and according to Jeremy, Campsis radicans is commonly called the ___ ___! (6,5) |
| PROCESSIONARY | Type of caterpillar which over-winters in tent-like nests in pine trees and is a real pest in Mallorca as the irritating hairs on its body can cause harmful reactions in people and animals (13) |
| POISONOAK | North American plant of the genus Toxicodendron (6, 3) |
| STINGINGNETTLE | Irritating plant upset figure holding makeshift letting sign? The opposite! (8,6) |
| POISON | Irritating plant, ... ivy (6) |
| VARNISHTREE | E. Asian tree, Toxicodendron vernicifluum, also called the lacquer tree (7,4) |
| PETPEEVES | Irritating behaviors, and what the ends of the answers to the starred clues may be? |
| STITCHING | Doing needlework on the street is irritating (9) |
| GREATBEAR | Stars on the radio are irritating breed (5,4) |
| BACKBITER | One who speaks evil of the absent irritating insect maybe |
| MIDDLEAGE | Forty or fifty died on the field - something irritating thing about it? |
| TIDDLIEST | Most inebriated heads of the interns' dorms, dance lewdly irritating every single teacher (9) |
| CASTOROIL | A purgative - can be irritating or stoical (6,3) |
| HEARTBURN | Try disease container, producing irritating sensation (9) |
| HAIRSHIRT | Irritating habit adopted by penitents |
| BOTHERING | Hum at start of Wagner operas is irritating (9) |
| ANNOYANCE | Anyone can produce something irritating (9) |
| SWITCHING | Rock covers are irritating, then diverting |
