---

All answers having "Yes!" as clue:

3 Character Answers:

---

AHA

AND

AYE

BUT

IDO

SIR



4 Character Answers:

---

AMEN

ICAN

ISAY

ISEE

MAAM

ORNO



5 Character Answers:

---

SCORE

SIREE



6 Character Answers:

---

ASSENT

ITISSO

SIRREE



7 Character Answers:

---

INDEEDY



8 Character Answers:

---

ALLRIGHT

WHATISIT



9 Character Answers:

---

CERTAINLY

SURETHING

YOUBETCHA



10 Character Answers:

---

ABSOLUTELY

AMENTOTHAT

BYALLMEANS

IKIDYOUNOT



11 Character Answers:

---

AFFIRMATIVE

BUTOFCOURSE

UNDOUBTEDLY



13 Character Answers:

---

SUREASSHOOTIN

WITHOUTADOUBT



15 Character Answers:

---

WEHAVENOBANANAS

YOUBETYOURBOOTS