Anxiety in business (7)
I believe the answer is:
concern
This clue is a double definition.
'anxiety' is the first definition.
(I know that concern is a type of anxiety)
'business' is the second definition.
(eg 'none of your concern', 'none of your business')
'in' acts as a link.
(Other definitions for concern that I've seen before include "Firm - interest" , "Disquiet" , "Cause of anxiety" , "Relate to; care" , "Involve" .)