---

All answers having "Gull" as clue:

3 Character Answers:

---

MEW

SAP



4 Character Answers:

---

DUPE

FOOL

TERN



5 Character Answers:

---

CHEAT

COZEN

LARID

TRICK



6 Character Answers:

---

DELUDE

FLEECE

SEAMEW

VICTIM



7 Character Answers:

---

DECEIVE

LIVEONE



8 Character Answers:

---

EASYMARK



15 Character Answers:

---

DUPETHETRUSTING