Saved some wine to pour inside (8)
I believe the answer is:
reserved
'saved' is the definition.
(thesaurus)
'some wine to pour inside' is the wordplay.
'some wine' becomes 'red' (red is a type of wine).
'to pour' becomes 'serve' (I can't justify this - if you can you should give a lot more credence to this answer).
'inside' is an insertion indicator.
'red' going around 'serve' is 'RESERVED'.
Can you help me to learn more?
(Other definitions for reserved that I've seen before include "Shy; booked" , "Booked in advance, being somewhat taciturn?" , "not forthcoming" , "Set aside; reticent" , "Slow to reveal opinions; kept by" .)