| CLAUSTRUM | A thin sheet of neurons attached to the underside of the neocortex in the centre of the brain |
| ONEHANDED | How Tom Cruise is holding on to the underside of an airplane in flight, in the trailer (what!?) |
| VENTRAL | Relating to the underside of a plant |
| INTERCONNEXION | Network in neocortex getting scrambled in pub |
| MAMMAL | Being with a neocortex |
| PINEAL | Name of the endocrine gland near the centre of the brain that releases melatonin into the bloodstream (6) |
| CODEINE | What drug depresses the cough centre of the brain and is often added to cough mixtures? (7) |
| BROCA | Paul ___, French surgeon who discovered the motor speech centre of the brain in 1861 (5) |
| STENCIL | Device for applying a design, characters, etc, to a surface, consisting of a thin sheet of plastic, metal, cardboard, etc (7) |
| MEMBRANE | A thin sheet of tissue or layer of cells that acts as a lining in an organism (8) |
| LAMINATE | Overlay a surface with a thin sheet of protective material, eg transparent plastic film |
| GOLDLEAF | A precious metal beaten into a thin sheet used in decorating e.g. the letters on the front of a book (4,4) |
| LYTTA | A type of band on the underside of the tongue in carnivores (5) |
| LAMELLA | Am in; left Ella with the gill for the underside of the agaric (7) |
| PLASTRON | Flat bony plate forming the underside of the shell of a tortoise or turtle (8) |
| TILE | A thin sheet of fired clay out of pestilence |
| AGARIC | Fungus having gills on the underside of the cap, such as the fly - (6) |
| VENEER | Overlay with a thin sheet of wood (6) |
| TINTYPE | Old photo made on a thin sheet of metal |
| STRUDEL | A thin sheet of filled dough, rolled up and baked (7) |