Fixed the radio (3)

I believe the answer is:

set

This clue is a double definition.

'fixed' is the first definition.
('set' can be a synonym of 'fixed')

'the radio' is the second definition.
(thesaurus)

(Other definitions for set that I've seen before include "Put down the group of games" , "See 16 Down" , "Put down the tennis group" , "Determined or congealed" , "Customary < scenery < a TV < series" .)

I've seen this clue in the Evening Standard.

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