Team in anger back for good drink (6)
I believe the answer is:
elixir
'good drink' is the definition.
'elixir' can be an answer for 'drink' (I have seen 'Restorative drink ' mean 'elixir' so perhaps 'drink' could also mean 'elixir'). I am unsure of the 'good' bit.
'team in anger back' is the wordplay.
'team' becomes 'XI' (a football team, from Roman numerals for rr).
'in' indicates putting letters inside.
'anger' becomes 'rile' (I've seen this before).
'back' says the letters should be written backwards.
'xi' placed into 'rile' is 'rixile'.
'rixile' reversed gives 'ELIXIR'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for elixir that I've seen before include "salutary solution?" , "Alchemists' potion" , "Substance that cures all ills?" , "Potion once thought to prolong life" , "A life-giving drink" .)