Not particular (7)
I believe the answer is:
general
'not particular' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for general that I've seen before include "Enlarge for senior army officer" , "High ranking officer" , "Rank; normal, usual" , "Non-specialist - army officer" , "Applying to all or most of a group" .)