Fragrant leaves spoil golden colour found in marmalade for example (8)
I believe the answer is:
marjoram
'fragrant leaves spoil golden colour found in marmalade for example' is the definition.
I can't tell whether this defines the answer.
'spoil golden colour found in marmalade for example' is the wordplay.
'spoil' becomes 'mar' (synonyms).
'golden colour' becomes 'or'.
'found in' means one lot of letters goes inside another.
'marmalade for example' becomes 'jam' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'or' placed into 'jam' is 'joram'.
'mar'+'joram'='MARJORAM'
Can you help me to learn more?
(Other definitions for marjoram that I've seen before include "Herb, maybe oregano" , "pot plant" , "Aromatic herb" , "found with Rosemary in the kitchen?" , "Herb used in cooking - a Mr Major (anag)" .)