Merely accused of having no experience? (7)
I believe the answer is:
untried
I believe this is a double definition.
'merely accused' is the first definition.
'having no experience?' is the second definition.
'of' is the link.
(Other definitions for untried that I've seen before include "Not given proper hearing in court" , "Not yet experienced" , "Intrude (anag.)" , "not yet proved reliable" , "virgin" .)