Add to the confusion of the general (7)
I believe the answer is:
enlarge
'add to' is the definition.
(thesaurus)
'confusion of the general' is the wordplay.
'confusion of' indicates anagramming the letters (I've seen this in other clues).
'general' with letters rearranged gives 'ENLARGE'.
'the' acts as a link.
(Other definitions for enlarge that I've seen before include "Blow up" , "Increase in size" , "Expand" , "Widen" , "go into greater detail" .)