We need this to get TV freedom (7)

I believe the answer is:

licence

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'freedom' is the definition.
(licence is a kind of freedom)

I cannot understand how the rest of the clue works.

(Other definitions for licence that I've seen before include "Legal document giving official permission" , "What a driver needs" , "Authority (or the lack of it!)" , "Official permit" , "-- plate; poetic --" .)

I've seen this clue in The Sun.

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