| PLEURA | Each of a pair of serous membranes enveloping the lungs (6) |
| PLURAL | Of serous membranes, say, more than one in number |
| AMNION | Inner of the two membranes enveloping the embryos of reptiles, birds and mammals, enclosed by the chorion (6) |
| PIAS | Innermost membranes enveloping the brain |
| PLEURISY | Inflammation of the membranes lining the thorax and enveloping the lungs (8) |
| DROPSY | Name an excessive accumulation of serous fluid in a serous cavity (6) |
| OEDEMA | An excessive accumulation of serous fluid in the intercellular spaces of tissue |
| STALL | A compartment for a single animal in a cowshed or stable; each of a row of seats in a choir; one of the fingers of a glove; a booth for the sale of goods in a Christmas market or any other fair; or, a |
| STITCH | Each of a series of sewn loops of thread, such as one in the "saddle" style, created only by hand (6) |
| COMMON | A form of Christian service used for each of a group of occasions |
| STAIRS | Each of a set of fixed indoor steps |
| SCULL | Each of a pair of oars used to propel a racing shell of the same name; or, a traditional Scottish basket for fish or potatoes (5) |
| SKI | Each of a pair of long narrow pieces of wood usually pointed and turned up at the front, fastened under the feet for traveling over snow |
| BRUSH | Tail of a fox; a brief encounter; or, each of a pair of implements for playing cymbals or drums (5) |
| HYALOID | Transparent membrane enveloping the vitreous humour of the eye (7) |
| STUD | Each of a series of fasteners used in place of buttons to secure the front of a man's formal shirt or either of a pair used to attach a collar (4) |
| EDEMAS | Tissue swellings caused by serous fluid (US spelling) |
| STIRRUP | Each of a pair of iron footrests attached to a saddle from which a parting cup takes its name (7) |
| PEDAL | Each of a pair of foot levers attached to a bike's cranks arms (5) |
| PIAMATER | What is the delicate innermost membrane enveloping the brain and spinal cord? (3,5) |
