Four letter word--change a letter

T

GLUG

R

glut

O

glum :-(:-(

T

GLUE

O

flue

as in what chimneys have......

R

flee

T

FLEA

R

plea

T

PLEB

R

pled

T

SLED

R

slid

T

SLIP

R

clip

T

CHIP..

10714