Put little work into wrong choice (6)
I believe the answer is:
option
'choice' is the definition.
(I know that choice can be written as option)
'put little work into wrong' is the wordplay.
'put' means one lot of letters goes inside another.
'little work' becomes 'op' ().
'wrong' is an anagram indicator.
'into' anagrammed gives 'tion'.
'op' going inside 'tion' is 'OPTION'.
(Other definitions for option that I've seen before include "Choice of portion" , "Potion (anag.)" , "Altenative choice" , "Preference" , "Alternative for choice" .)