Classifies Heavy Metal for one music-maker in Ulster college (9)
I believe the answer is:
inorganic
'classifies heavy metal' is the definition.
I can't judge whether this definition defines the answer.
'one music-maker in ulster college' is the wordplay.
'one' becomes 'i' (Roman numeral).
'music maker' becomes 'organ' (organ is a kind of musical instrument).
'in' indicates putting letters inside.
'ulster' becomes 'ni' (Northern Ireland).
'college' becomes 'c'.
'organ' going into 'ni' is 'norgani'.
'i'+'norgani'+'c'='INORGANIC'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for inorganic that I've seen before include "Not of animal/vegetable origin" , "Man-made" , "Non-carbon (chemistry)" , "Not deriving from living matter" , "Not derived from living matter" .)