Some extreme talent needed in heavy music (5)
I believe the answer is:
metal
'heavy music' is the definition.
(I've seen this in another clue)
'some extreme talent needed' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'METAL' is hidden in the letters of 'extreme talent needed'.
'in' is the link.
(Other definitions for metal that I've seen before include "Solid material, a good conductor of heat and electricity" , "Iron, gold or silver, for example" , "Intrinsic quality; stone for roads" , "Element eg for road or rail" , "barium?" .)