Writer needing men in good health (6)
I believe the answer is:
orwell
'writer' is the definition.
(I've seen this before)
'men in good health' is the wordplay.
'men' becomes 'or' (I've seen this in other clues**).
'in good health' becomes 'well' ('well' can be similar in meaning to 'in good health').
'or'+'well'='ORWELL'
'needing' acts as a link.
(Other definitions for orwell that I've seen before include "River" , "Blair's pseudonym" , "Blair, Eric, d. 1950" , "George . . . . . ., writer concerned with social justice" , "George --, novelist" .)