| PHEROMONES | Special scent messages that are released from the glands on an ant's body and which is used for communicating with the colony |
| LAC | Resinous substance secreted as by an insect (and which is used to make varnish), as found in blackfly - and slack lace! (3) |
| TERRAPIN | A reptile which has a thick shell covering its body and which lives partly in water and partly on land (8) |
| STYE | Bacterial infection of the glands on the eyelid (4) |
| MUSK | Fragrance which originally came from the glands of a deer. (4) |
| NECTAR | Honey from the glands of plants (6) |
| ADRENALS | Glands on top of the kidneys |
| RYE | Cereal plant the grain of which is used for bread and fodder / fermented and distilled and made into whiskey |
| LANE | Life in the Fast ___ song co-written by Joe Walsh which was the third single released from the same album as 15a |
| HAIRY | Common name for Cardamine hirsuta, an annual or biennial member of the mustard family, and which is an edible if bitter herb (5,11) |
| BITTERCRESS | Common name for Cardamine hirsuta, an annual or biennial member of the mustard family, and which is an edible if bitter herb (5,11) |
| RICHMAN | Tommy with a song that spent 22 weeks at the top of the hip-hop charts this year, and which is expected to be nominated for at least one Grammy next month |
| SAIGON | Miss ___, musical set during the Vietnam War and which is based on the opera Madame Butterfly (6) |
| YANGTZE | Asian river whose source is in the Tanggula Mountains, and which is spanned by the Three Gorges Dam (7) |
| TRAPS | Stalls which greyhounds are released from at the start of a race (5) |
| ENDOCRINOLOGIST | An expert in diagnosing and treating disorders of the glands and organs that make hormones (15) |
| PINEAL | The --- gland is an organ in the brain that secretes melatonin into the bloodstream (6) |
| ERRANDS | And one is mistaken about the messages that are run (7) |
| KAPOK | Silky fibre obtained from the tree Ceiba pentandra, which is used for stuffing pillows (5) |
| DODO | A bird that was a flightless member of the pigeon family and which is now extinct |