Doomed defendant right to be put inside (8)
I believe the answer is:
accursed
'doomed' is the definition.
(accursed means doomed or condemned)
'defendant right to be put inside' is the wordplay.
'defendant' becomes 'accused' (synonyms).
'right' becomes 'r' (common abbreviation).
'to be put inside' means one lot of letters goes inside another.
'accused' going around 'r' is 'ACCURSED'.
(Other definitions for accursed that I've seen before include "Damned" , "Hateful" , "Goddamn" , "Wretched" , "Cue cards (anag) - doomed" .)