Morse novel located in a rural county (8)
I believe the answer is:
somerset
'a rural county' is the definition.
'Somerset' can be an answer for 'county' (English county). I'm not sure about the 'a rural' bit.
'morse novel located in' is the wordplay.
'novel' indicates anagramming the letters (letters in a new or novel order).
'located' becomes 'set' (synonyms).
'in' is an insertion indicator.
'morse' is an anagram of 'omers'.
'omers' going inside 'set' is 'SOMERSET'.
Can you help me to learn more?
(Other definitions for somerset that I've seen before include "Street location" , "part of south-west England" , "Old English county" , "Wells's county" , "Mendip county; a London House" .)