Given similar roles, produce manuscript when entering court (8)
I believe the answer is:
typecast
'given similar roles produce' is the definition.
The definition and answer can be both to do with creating things as well as being verbs in their base form.
Maybe there's a link between them I don't understand?
'manuscript when entering court' is the wordplay.
'manuscript' becomes 'type' (I can't explain this - if you can you should give a lot more credence to this answer).
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'entering' means one lot of letters goes inside another.
'court' becomes 'ct' (abbreviation used in road names).
'as' put within 'ct' is 'cast'.
'type'+'cast'='TYPECAST'
Can you help me to learn more?
(Other definitions for typecast that I've seen before include "in the usual parts" , "Stereotype" , "make actor repeat himself ..." , "with no variation in roles" , "engaged for similar roles" .)