| AILANTHUS | Genus of trees including that known as the Tree of Heaven |
| ROWAN | Known in Celtic mythology as the "tree of life", the mountain ash or "witchbeam" as it is known regionally with red berries said to ward off evil spirits (5) |
| EXTRAPOLATE | They're an expert lot with Amateur Athletics and able to infer from that known |
| TAMARILLO | Tropical South American plant of the nightshade family also known as the tree tomato; Solanum betaceum (9) |
| SEQUOIA | Genus of trees including the California redwood (7) |
| PRUNUS | Genus of trees including plum, cherry, almond and sloe (6) |
| KEYS | Also known as samaras, the winged fruits of trees including ash and maple (4) |
| OLEA | Genus of trees including ashes, jasmines, lilacs, privets and moreover, slow-growing evergreens bearing drupe fruits pressed for cooking oil (4) |
| MANTISSAS | Soldier meets elite soldiers to gather tops of trees, including small parts of logs (9) |
| BLOSSOM | Celebrated in the Japanese Hanami festival, pastel pink or white blooms of trees including wild cherry (gean), peach, plum, crab apple and hawthorn (7) |
| ROOST | Part of tree including second branch, perhaps? (5) |
| ROSES | Fragrant flowers growing in the walled gardens of Mottisfont in 39 Ancient Greek philosopher who formulated paradoxes including that of Achilles and the tortoise (4) |
| ARECA | Genus of tall trees including the ipot palm (5) |
| WHITE | Author of novels including The Tree of Man, The Eye of the Storm and A Fringe of Leaves (5) |
| BORISKARLOFF | English actor known for his roles in horror films, including that of Frankenstein's monster in three movies in the 1930s (5,7) |
| CATKINS | Also known as lamb's-tails, elongated flower clusters of hazel and other trees including willow, alder, walnut, white poplar and silver birch (7) |
| ZENO | Ancient Greek philosopher who formulated paradoxes including that of Achilles and the tortoise (4) |
| BLOSSOMED | Old besoms were made as the trees came into flower (9) |
| ASSAILANT | One attacking a small southern tree of heaven endlessly |
| AVON | Any one of the five tautological "River Rivers" in England, including that famously flowing through Shakespeare's home town (4) |
