| LITHIC | Composed of stone |
| AMMONIA | Colourless pungent gas composed of one atom of nitrogen bonded to three atoms of hydrogen, chiefly used in the manufacture of fertilisers and nitric acid (7) |
| PROTEIN | Group of organic compounds composed of amino acids forming an essential part of all living organisms |
| GENE | A unit of heredity composed of DNA and determines a particular characteristics of an individual |
| TWOPLY | Description of yarn composed of a pair of strands or wooden board in layers (3-3) |
| ANANAS | A genus of tropical American plants have sword-shaped leaves and a fleshy compound fruits composed of the fruits of several flowers (such as pineapples). |
| SHALE | Most abundant of the sedimentary rocks, composed of successive layers of compressed mud or clay (5) |
| ALLSTAR | Composed of outstanding of performers (3-4) |
| DIAMOND | Colourless precious stone composed of carbon (7) |
| GRANITEBEDROCK | Nova Scotia: Some of the Eastern Shore is composed of this rugged stuff: 2 wds. |
| ILMENITE | Black mineral composed of oxides of iron and titanium (8) |
| PLATINUM | Metal composed of phosphorus, lanthanum, tin, uranium and a bit of magnesium (8) |
| OXEYE | What is a common name for any of the plants with flowers composed of a disc with marginal rays, such |
| LAHAR | Destructive mudflow, composed of pyroclastic material and water, that flows down the slopes of a vol |
| HOUSEOFLORDS | Known to MPs as the "other place", the second chamber of Parliament, composed of peers and bishops ( |
| EPODE | A type of lyric poem composed of couplets in which a long line is followed by a shorter one (5) |
| JIGSAW | Puzzle game composed of lots of pieces (6) |
| NUCLEUS | Positively charged central core of an atom composed of neutrons and protons |
| COLLAGE | Artwork composed of various materials such as photographs and pieces of paper or fabric |
| HADRONS | They're composed of quarks (particles whose six flavors appear at the ends of the asterisked entries) |
