Land of manure, almost (5)
I believe the answer is:
realm
'land' is the definition.
(I've seen this before)
'of manure almost' is the wordplay.
'of' says the answer is hidden in the clue.
'REALM' is hidden in the letters of 'manure almost'.
(Other definitions for realm that I've seen before include "A Nation" , "World" , "Empire - state" , "Royal domain" , "Kingdom or sphere" .)