Plan beforehand to do the orchestration (7)
I believe the answer is:
arrange
This clue could be a double definition.
'plan beforehand' is the first definition.
'arrange' can be an answer for 'plan' (I've seen this before). I'm 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" .)