---

All answers having "Fume" as clue:

3 Character Answers:

---

GAS



4 Character Answers:

---

BOIL

EMIT

ODOR

RAGE

RANT

REEK

STEW

VENT



5 Character Answers:

---

BEMAD

SMOKE

STEAM

VAPOR



6 Character Answers:

---

SEERED

SEETHE



7 Character Answers:

---

SMOLDER



15 Character Answers:

---

GETALLINALATHER