Tower With Sails That Drains a Marsh or Swamp
This page is the CodyCross answer for the clue below from Home Sweet Home, Group 621, Puzzle 4 (Welcome Mat).
Question is: Tower With Sails That Drains a Marsh or Swamp
and the answer is: WINDPUMP
Word Meaning:
WINDPUMP — A structure somewhat like a windmill for pumping water, either for drainage or for irrigation
Definitions from Wiktionary.