Plan beforehand to do the orchestration (7)
I believe the answer is:
arrange
This could be a double definition.
'plan beforehand' is the first definition.
'arrange' can be an answer for 'plan' (I've seen this before). I am unsure of the 'beforehand' bit.
'do the orchestration' is the second definition.
'arrange' can be an answer for 'do' (synonyms). I am not sure about the 'the orchestration' bit.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for arrange that I've seen before include "Orchestrate - order" , "Put in order; plan" , "Put in systematic order" , "Put in neat order" , "Fix" .)