"War of the Worlds" author (5)
I believe the answer is:
wells
'war of the worlds author' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for wells that I've seen before include "Flows upward; small city" , "Somerset cathedral city" , "What a boring person might produce" , "H. G. . . . . ., science-fiction writer" , "Author" .)