Fine sulphur added to pure solution (5)
I believe the answer is:
super
'fine' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
'sulphur added to pure solution' is the wordplay.
I cannot really understand how this works, but
'sulphur' could be 's' (synonyms) and 's' is found in the answer.
an anagram of 'pure' is 'uper' which is within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for super that I've seen before include "Topnotch, terrific" , "senior cop" , "Delightful" , "Excellent; policeman" , "Excellent; police officer" .)