| Clue | Length | Answer |
|---|---|---|
| Nucleus | 3 letters | sap |
| Nucleus | 4 letters | germ |
| Nucleus | 4 letters | seed |
| Nucleus | 4 letters | quid |
| Nucleus | 4 letters | part |
| Nucleus | 4 letters | core |
| Nucleus | 4 letters | soul |
| Nucleus | 4 letters | gist |
| Nucleus | 5 letters | thick |
| Nucleus | 5 letters | spark |
| Nucleus | 5 letters | stuff |
| Nucleus | 5 letters | cadre |
| Nucleus | 5 letters | heart |
| Nucleus | 5 letters | waist |
| Nucleus | 5 letters | sense |
| Nucleus | 6 letters | spirit |
| Nucleus | 6 letters | kernel |
| Nucleus | 6 letters | center |
| Nucleus | 6 letters | proton |
| Nucleus | 6 letters | centre |
| Nucleus | 7 letters | central |
| Nucleus | 8 letters | quiddity |
| Nucleus | 8 letters | rudiment |
| Nucleus | 9 letters | umbilicus |
| Nucleus | 9 letters | principle |
| Nucleus | 9 letters | waistline |
| Nucleus | 9 letters | substance |
| Nucleus | 11 letters | strangeness |
| Nucleus | 12 letters | quintessence |
| Nucleus | 12 letters | spermatozoon |
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