Heavy, deep mud (4)
I believe the answer is:
mire
(Other definitions for mire that I've seen before include "Mud - bog" , "(Stretch of) clinging mud" , "Deep soft mud" , "Swampy ground" , "Emir found in mud" .)
I believe the answer is:
mire
(Other definitions for mire that I've seen before include "Mud - bog" , "(Stretch of) clinging mud" , "Deep soft mud" , "Swampy ground" , "Emir found in mud" .)