Start of a spelling rule, or a rule to keep in mind while answering the starred clues

4 letters

"Despacito" singer Fonsi

L

U

I

S

8 letters

"I'm gonna be straight with you ... "

R

E

A

L

T

A

L

K

4 letters

"In that case ... "

I

F

S

O

3 letters

"Kinda"

I

S

H

3 letters

"Look what I found!"

O

H

O

5 letters

"Rise and shine!"

G

E

T

U

P

5 letters

"Roman Holiday" scooter

V

E

S

P

A

6 letters

"What's up, bro!"

H

E

Y

M

A

N

8 letters

*Command to turn

F

A

C

E

L

I

F

T

10 letters

*Flourishing

L

I

V

I

N

G

W

I

L

L

10 letters

*Ink-filled tool for illustrators

D

R

A

W

I

N

G

P

I

N

9 letters

*Makes explicitly clear

S

P

I

L

L

S

O

U

T