Crossword Genius

Heavy metal instrument? (4,6)

Ross

I believe the answer is:

lead guitar

I'm a little stuck... Click here to teach me more about this clue!

'heavy metal instrument?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'heavy metal instrument?' is the wordplay.
'heavy metal' becomes 'lead' (lead is a heavy metal).
'instrument?' becomes 'guitar' (guitar is a kind of instrument).
'lead'+'guitar'='LEAD GUITAR'

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I've seen this clue in the Sydney Morning Herald.
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