---

All answers having "Contest" as clue:

3 Character Answers:

---

BEE

VIE



4 Character Answers:

---

AGON

BOUT

DUEL

MEET

RACE

TILT



5 Character Answers:

---

ARGUE

MATCH



6 Character Answers:

---

OPPOSE

SWEEPS



7 Character Answers:

---

REMATCH

TOURNEY



8 Character Answers:

---

STRUGGLE

TUGOFWAR