---

All answers having "Violent windstorm" as clue:

4 Character Answers:

---

CLOG



5 Character Answers:

---

SMASH



6 Character Answers:

---

ESTATE

LAVISH

SQUALL



7 Character Answers:

---

CYCLONE

RAIMENT

RUFFIAN

TEMPEST

TORNADO

TWISTER



12 Character Answers:

---

IDIOSYNCRASY