Applicable to any member of a class; non-proprietary (7)
I believe the answer is:
generic
This clue is a double definition.
'applicable to any member of a class' is the first definition.
(I've seen this before)
'non-proprietary' is the second definition.
(I've seen this before)
(Other definitions for generic that I've seen before include "cheap drug" , "(Of drugs) having no brand name" , "Applicable to an entire class or group" , "appropriate for the whole class" , "Non-proprietary (drug)" .)