Work is not about making choices (7)
I believe the answer is:
options
'choices' is the definition.
(I know this)
'work is not about' is the wordplay.
'work' becomes 'op' (abbreviation for opus).
'about' indicates anagramming the letters.
'is'+'not'='isnot'
'isnot' with letters rearranged gives 'tions'.
'op'+'tions'='OPTIONS'
'making' is the link.
(Other definitions for options that I've seen before include "Choices, ways to go" , "Alternatives, choices" .)