Angry, bring the new list in (9)
I believe the answer is:
bristling
'angry bring the new list in' is the definition.
I can't judge whether this defines the answer.
'bring the new list in' is the wordplay.
'the new' indicates anagramming the letters.
'in' means one lot of letters goes inside another.
'list' anagrammed gives 'istl'.
'bring' enclosing 'istl' is 'BRISTLING'.
Can you help me to learn more?
(Other definitions for bristling that I've seen before include "Seeing red" , "visibly indignant?" , "Very cross" , "Reacting defensively" .)