Groovy district in an English county? (7)
I believe the answer is:
rutland
'an english county?' is the definition.
(I've seen this before)
'groovy district' is the wordplay.
'groovy' becomes 'rut' (I can't explain this - if you can you should give a lot more credence to this answer).
'district' becomes 'land' (land is a kind of district).
'rut'+'land'='RUTLAND'
'in' is the link.
Can you help me to learn more?
(Other definitions for rutland that I've seen before include "Smallest English county" , "Smallest of the historical English counties" , "Bucks? Something of that ilk" , "Tiny county" , "Small English county" .)