Broadcast, maybe, or shown breathlessly (4)

I believe the answer is:

sown

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'broadcast' is the definition.
(broadcast can mean to sow seeds)

I can't explain the remainder of the clue.

(Other definitions for sown that I've seen before include "(Of seeds) planted" , "Placed in ground as seed" , "Broadcast" , "(Of seed) planted" , "set out to grow" .)

I've seen this clue in the Evening Standard.

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