Hemingway's tense novel about resistance (6)
I believe the answer is:
ernest
'hemingway's' is the definition.
(author Ernest Hemingway)
'tense novel about resistance' is the wordplay.
'novel' indicates an anagram (letters in a new or novel order).
'about' means one lot of letters goes inside another.
'resistance' becomes 'r' (electronics abbreviation).
'tense' anagrammed gives 'enest'.
'enest' going around 'r' is 'ERNEST'.
(Other definitions for ernest that I've seen before include "- Shackleton, Antarctic explorer" , "character for Wilde" , "Name beloved of Gwen Fairfax (Wilde)" , "American writer . . . . . . Hemingway" , "Boy's name (the important one!)" .)