| QUANTUMMECHANICS | In which particles can be regarded as waves |
| PLACER | Alluvium from which gold particles can be washed; one who puts clay pieces into a saggar, ready for firing in a kiln; or, a fence, dealing in stolen goods (6) |
| MATRIX | Ground mass in which particles are embedded (6) |
| DEBROGLIE | The first physicist to suggest that subatomic particles can also have the properties of waves (2,7) |
| SOLID | Phase in which particle motion is at its slowest |
| ION | What particle can gain or lose electrons? (3) |
| RESPECTABLE | With approval, can be regarded as above board (11) |
| TIN | Can be regarded as a metal (3) |
| ALLOWABLE | The whole lot can be regarded as a debt, apparently (9) |
| NOSTRUM | No such inartistic playing can be regarded as medicinal (7) |
| SCANT | Can a saint be regarded as being in short supply? (5) |
| LOCAL | A pub which, hyphenated, might be regarded as nutritionally healthy |
| CONSONANT | I can't be regarded as one agreeing |
| NURSERIES | Can day-centres or creches be regarded as hothouses? (9) |
| SOFT | As a consequence, newspaper might be regarded as too lenient, perhaps |
| DOUBLEMEANING | Looks like me having a purpose which could be regarded as ambiguous |
| NONSTARTERS | They can't be regarded as beginners of course (3-8) |
| CITYSLICKER | He may be regarded as over-sophisticated in capital (4,7) |
| SPOT | Pimple may be regarded as the very best that can turn up (4) |
| SNAFU | Chaos could be regarded as fun (5) |
