Crossword Genius

Perform in regularly broadcast shows about one extremely destructive heavy metal group (8,6)

Ross

I believe the answer is:

actinide series

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'about one extremely destructive heavy metal group' is the definition.
'actinide series' can be an answer for 'group' (actinide series is a kind of group). I am unsure of the 'about one extremely destructive heavy metal' bit.

'perform in regularly broadcast' is the wordplay.
'perform in regularly' becomes 'actinide' (I can't justify this - if you can you should give a lot more credence to this answer).
'broadcast' becomes 'series' (series is a kind of broadcast).
'actinide'+'series'='ACTINIDE SERIES'

'shows' acts as a link.

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