Crossword Genius

Disconcerted as a result of broadcast getting cancelled (5,3)

Ross

I believe the answer is:

threw off

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'disconcerted' is the definition.
Although both the answer and definition are past participle verbs, I can't see how one could define the other.

'as a result of broadcast getting cancelled' is the wordplay.
'as a result of' becomes 'through' (I've seen this before).
'broadcast' shows a homophone (sound like) (how the word might sound on the radio or TV).
'getting' is a charade indicator (letters next to each other).
'cancelled' becomes 'off' (similar in meaning).
'through' is a homophone of 'threw'.
'threw'+'off'='THREW OFF'

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I've seen this clue in The Telegraph.
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