Want to get rid of bit of dirty mud? (5)
I believe the answer is:
earth
'mud?' is the definition.
(mud is a kind of earth)
'want to get rid of bit of dirty' is the wordplay.
I cannot really see how this works, but
'bit' could be 'ear' (I have seen 'Bit of corn' mean 'ear' so perhaps 'bit' could also mean 'ear') and 'ear' is located in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for earth that I've seen before include "Land" , "It is necessary to clear" , "Soil; electrical connection" , "our home" , "Huge cost" .)