Pastoral, idyllic (8)
I believe the answer is:
arcadian
I believe this clue is a double definition.
'pastoral' is the first definition.
(I know that pastoral can be written as arcadian)
'idyllic' is the second definition.
(thesaurus)
(Other definitions for arcadian that I've seen before include "Green" , "Can a raid take place in poetically rural kind of setting?" , "Country dweller" , "Of idealised country life" .)