---

All answers having "Central point" as clue:

3 Character Answers:

---

HUB

NUB



4 Character Answers:

---

CRUX

GIST

NODE



5 Character Answers:

---

FOCUS

MIDST

NAVEL

NEXUS

PIVOT



6 Character Answers:

---

MIDWAY

THESIS



8 Character Answers:

---

MAINIDEA



15 Character Answers:

---

CRUXOFTHEMATTER