Exist even when scattered over wide area (9)
I believe the answer is:
extensive
'exist even when scattered over wide area' is the definition.
I can't judge whether this definition defines the answer.
'exist even when scattered' is the wordplay.
'when scattered' indicates an anagram (I've seen this in other clues).
'exist'+'even'='existeven'
'existeven' with letters rearranged gives 'EXTENSIVE'.
Can you help me to learn more?
(Other definitions for extensive that I've seen before include "Widespread" , "terribly large" , "Broad in scope" , "Covering much area" , "Covering a large area" .)