My ring contains gold material (9)
I believe the answer is:
corporeal
'material' is the definition.
(I know that material can be written as corporeal)
'my ring contains gold' is the wordplay.
'my' becomes 'cor' (both are expressions of surprise).
'ring' becomes 'peal' (synonyms).
'contains' means one lot of letters goes inside another.
'gold' becomes 'or' ('or' is the heraldic name for gold).
'peal' placed around 'or' is 'poreal'.
'cor'+'poreal'='CORPOREAL'
(Other definitions for corporeal that I've seen before include "Bodily" , "not spiritual" , "of flesh" , "physical" , "pink material" .)