SEWER is a playable word

sewer Scrabble® Dictionary

verb
sewered, sewering, sewers
to clean or maintain sewers (underground conduits for waste)
27 Playable Words can be made from "SEWER"
   2-Letter Words (5 found)
   3-Letter Words (10 found)
   4-Letter Words (8 found)
   5-Letter Words (4 found)