Case for TV taxi in film (7)

I believe the answer is:

cabinet

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'case for tv' is the definition.
'cabinet' can be an answer for 'case' (I've seen this before). I'm not certain of the 'for tv' bit.

'taxi in film' is the wordplay.
'taxi' becomes 'cab' (synonyms).
'film' becomes 'ET' (E.T. the Extra-Terrestrial).
'cab'+'in'+'et'='CABINET'

Can you help me to learn more?

(Other definitions for cabinet that I've seen before include "Selected ministers" , "Committee of senior ministers" , "Case" , "It may be shelved" , "meeting of governors" .)

I've seen this clue in The Sun.

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