It's for airing jumpers found in the stable (12)
I believe the answer is:
clotheshorse
'stable' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'it's for airing jumpers found in the' is the wordplay.
I cannot quite see how this works, but
'it's' could be 'es' ('e' can mean 'electronic' which is similar to 'IT') and 'es' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for clotheshorse that I've seen before include "Dandy - frame to hang laundry on" , "Model for fashionable wear (inf.)" , "Airer for garments" .)