The usual kinds - large (7)
I believe the answer is:
general
'the usual' is the definition.
(thesaurus)
'kinds large' is the wordplay.
'kinds' becomes 'genera' (genus is a kind of kind).
'large' becomes 'l'.
'genera'+'l'='GENERAL'
(Other definitions for general that I've seen before include "Enlarge (anag.)" , "Common - army officer" , "Universal" , "Leader" , "Usual; officer" .)