Some admitting blame for treatment (7)
I believe the answer is:
therapy
'treatment' is the definition.
(synonyms)
'some admitting blame' is the wordplay.
'some' becomes 'they'.
'admitting' indicates putting letters inside.
'blame' becomes 'rap' (synonyms).
'they' going around 'rap' is 'THERAPY'.
'for' is the link.
(Other definitions for therapy that I've seen before include "Curative treatment" , "healing process" , "Relieving treatment" , "Medical treatment" , "Remedial treatment" .)