You can only change ONE letter, AND/OR rearrange the letters currently available. The first word is:
WINS
sash
wash
paws
swan
swap
soap
pous
Aha! finally...
SOUP
spod
pods
dops
dope
dole
Kray - keen on soup, eh?
loud
Dedicated to @662. :-)
undo
down
wind
kind
kids
dais
said
aids
soda
dash