Pour or tip out a delightful mixture (9)
I believe the answer is:
potpourri
'a delightful mixture' is the definition.
'potpourri' can be an answer for 'mixture' (synonyms). I'm not sure about the 'a delightful' bit.
'pour or tip out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'pour'+'or'+'tip'='pourortip'
'pourortip' is an anagram of 'POTPOURRI'.
Can you help me to learn more?
(Other definitions for potpourri that I've seen before include "Air-freshener" , "Perfuming mixture" , "Dried petal mix" , "Selection" , "hodgepodge" .)