Idiots on commission in English county (9)
I believe the answer is:
berkshire
'idiots on commission in english county' is the definition.
'berkshire' can be an answer for 'county' (I've seen this before). I am unsure of the 'idiots on commission in english' bit.
'commission in english county' is the wordplay.
'commission in' becomes 'berk' (I can't justify this - if you can you should believe this answer much more).
'english county' becomes 'shire' (I've seen this before).
'berk'+'shire'='BERKSHIRE'
Can you help me to learn more?
(Other definitions for berkshire that I've seen before include "County W. of_London" , "Windsor area" , "Southern county" , "English county" , "County west of London" .)