Fictional island nitwit oddly located in map reference (8)
I believe the answer is:
atlantis
'fictional island' is the definition.
The definition suggests a singular noun which matches the answer.
'nitwit oddly located in map reference' is the wordplay.
'oddly' indicates alternate letters (letters in the odd-numbered positions are used).
'located in' is an insertion indicator.
'map reference' becomes 'atlas' (I can't justify this - if you can you should believe this answer much more).
The alternating letters of 'nitwit' are 'nti'.
'nti' going inside 'atlas' is 'ATLANTIS'.
Can you help me to learn more?
(Other definitions for atlantis that I've seen before include "Legendary vanished island - mythical place" , "Legendary island engulfed by the sea" , "Legendary long-lost island" , "Fabled lost continent" , "Catastrophic scene" .)
