| PEAR | Opuntia is the prickly (4) |
| PRICKLYPEAR | Cactus of the genus Opuntia (7,4) |
| CACTACEOUS | Like, or relating to, the family of plants of which the prickly pear is a common example (10) |
| CHOLLA | Spiny cactus of the genus Opuntia found in Mexico and the south-western US; from Spanish, 'head' or skull' (6) |
| OPUNTIA | The prickly-pear genus of the cactus family (7) |
| INDIANFIG | Common name for the cactus Opuntia humifusa |
| HEDGEHOG | The prickly creature on a green boundary is a real pig! (8) |
| GORSE | From "stand on end, bristle", "barley" and "hedgehog", the prickly evergreen furze or whin that, according to folklore, when in bloom with golden papilionaceous flowers, kissing is said to be in seaso |
| NOPAL | Cactus resembling the prickly pear |
| THORNS | The prickly types in North's Order (6) |
| OPUNTIAS | Cacti of the prickly pear genus |
| UTOPIAN | OPUNTIA |
| PORCUPINE | What did the prickly creature's family pick as their Christmas tree? A ___ |
| PEARS | If prickly, they're in Opuntia genus not Pyrus! (5) |
| ROSE | The blooming thing is prickly, so the walker got up! (7,4) |
| BURR | What is a rough or prickly seed vessel or flower head of a plant, e.g. the flower head of the burdock? (4) |
| HOLY | Prickly plant is fifty short but still divine (4) |
| NUBS | Note a block emptied for prickly shrub found in the Middle East (4) |
| ILEX | Roman law pursues one prickly family (4) |
| ROSA | Genus of climbing, prickly plants including roses (4) |