Open anger giving birthday present to burn? (12)
I believe the answer is:
frankincense
'birthday present to burn?' is the definition.
I can't judge whether this defines the answer.
'open anger' is the wordplay.
'open' becomes 'frank' (synonyms).
'anger' becomes 'incense' (to incense is make angry).
'frank'+'incense'='FRANKINCENSE'
'giving' is the link.
Can you help me to learn more?
(Other definitions for frankincense that I've seen before include "Gum resin used as incense" , "One of the gifts of the Magi" , "Christmas gift" , "One of three wise men's gifts" , "Aromatic gum resin - an original Christmas present!" .)