New defence group taken to court (7)
I believe the answer is:
untried
'new' is the definition.
(similar in meaning)
'defence group taken to court' is the wordplay.
I cannot quite understand how this works, but
'taken' could be 'tried' (trying is a kind of taking) and 'tried' is located in the answer.
The remaining letters 'un' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for untried that I've seen before include "virgin" , "Not given proper hearing in court" , "Yet to be taken to court" , "Not yet experienced" , "not yet proved reliable" .)