Middle of Kent county, nice and never one inconvenience (11)
I believe the answer is:
encumbrance
'inconvenience' is the definition.
(thesaurus)
'middle of kent county nice and never one' is the wordplay.
I cannot quite understand how this works, but
'middle' could be 'm' (abbreviation for middle) and 'm' is located in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'one' could be 'an' (an apple is one apple) and 'an' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for encumbrance that I've seen before include "liability" , "drag" , "Impediment - burden" , "confounded nuisance!" .)