Top music broadcast — one of the Chili Peppers? (8)

I believe the answer is:

capsicum

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'one of the chili peppers?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'top music broadcast' is the wordplay.
'top' becomes 'cap' (both can mean to beat or outdo).
'broadcast' indicates an anagram (letters scattered or cast around).
'music' is an anagram of 'sicum'.
'cap'+'sicum'='CAPSICUM'

Can you help me to learn more?

(Other definitions for capsicum that I've seen before include "Sweet red or green pepper" , "Pepper supplier" , "hot stuff perhaps" , "Chili pepper genus" , "Tropical plant producing peppers -- music cap (anag)" .)

I've seen this clue in The Times.

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