| Rating | Solver | Clue |
|---|---|---|
| ROOT | Primary source | |
| ROOTSTOCK | Primary source | |
| ORIGIN | Primary source | |
| STOVE | Steve heartlessly seizing orphan’s primary source of heat | |
| SEMINAL | ...source, or first principle; holding the first place in a series of developed results or consequents; germinal; radical; primary; original; as, ... | |