Long-term strategy to control most of factory (6,4)

I believe the answer is:

master plan

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'long-term strategy' is the definition.
'master plan' can be an answer for 'strategy' (I have seen 'Overall strategy' mean 'master plan' so perhaps 'strategy' could also mean 'master plan'). I am not certain of the 'long-term' bit.

'control most of factory' is the wordplay.
'control' becomes 'master' (synonyms).
'most of' means to remove the last letter.
'factory' becomes 'plant' (a manufacturing plant).
'plant' with its final letter taken away is 'plan'.
'master'+'plan'='MASTER PLAN'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for master plan that I've seen before include "Great stratagem" , "Overall strategy" .)

I've seen this clue in The Guardian.

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