Blue placed vase in Red Centre (9)
I believe the answer is:
saturnine
'blue' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?
'placed vase in red centre' is the wordplay.
'placed' becomes 'sat' (sitting is a kind of placing).
'vase' becomes 'urn' (both can mean a container).
'centre' says to take the centre.
The middle letter of 'red' is 'e'.
'sat'+'urn'+'in'+'e'='SATURNINE'
Can you help me to learn more?
(Other definitions for saturnine that I've seen before include "Gloomy; dark and brooding" , "moody" , "Morose looking" , "dull" , "A rust nine chnage to be grave and gloomy" .)