ACKLOWS
Make words with S
Never: plural or third-person -S
ALAS ALSO CASK CASSOCK CLASS COLOSSAL LASS LASSO LOSS SACK SALA SALLOW SALSA SASS SCOW SCOWL SLACK SLAW SLOW SOAK SOCA SOCK SOLO SWALLOW WOOLSACK
Pangrams: WOOLSACK
score: 83