Not bad, Berkoff cast in plays (like this) (2,8)
I believe the answer is:
in brackets
'not bad berkoff cast' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'in plays like this' is the wordplay.
I cannot really understand how this works, but
'in' is found in the answer.
The remaining letters 'brackets' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for in brackets that I've seen is " (enclosed as shown here)".)