Stout, a novelist (5)
I believe the answer is:
hardy
This clue is a double definition.
'stout' is the first definition.
('hardy' can be a synonym of 'stout')
'a novelist' is the second definition.
(Hardy is a novelist)
(Other definitions for hardy that I've seen before include "description of certain annuals" , "bold" , "able to meet tough conditions" , "relatively able to endure exposure" , "Brave" .)