Shame about grubbiness, that needing clearing out? (6)
I believe the answer is:
pigsty
'shame about grubbiness that needing clearing out?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'shame about grubbiness' is the wordplay.
'shame' becomes 'pity' (synonyms).
'about' indicates putting letters inside.
'grubbiness' becomes 'gs' (I can't explain this - if you can you should give a lot more credence to this answer).
'pity' going around 'gs' is 'PIGSTY'.
Can you help me to learn more?
(Other definitions for pigsty that I've seen before include "Very dirty house" , "Without boots" , "Dirty place; animal pen" , "Proverbial mess" , "Lamb neck-chop" .)