---

All answers having "Unearth" as clue:

3 Character Answers:

---

DIG



4 Character Answers:

---

FIND

MINE

ROOT



5 Character Answers:

---

DIGUP



6 Character Answers:

---

DIGOUT

DREDGE

EXHUME

LOCATE

RAKEUP

ROOTUP



8 Character Answers:

---

DISCOVER

DREDGEUP

EXCAVATE



12 Character Answers:

---

BRINGTOLIGHT