Infuriate English: anger boiling (6)
I believe the answer is:
enrage
'infuriate' is the definition.
(I've seen this before)
'english anger boiling' is the wordplay.
'english' becomes 'E' (abbreviation).
'boiling' indicates anagramming the letters.
'anger' is an anagram of 'nrage'.
'e'+'nrage'='ENRAGE'
(Other definitions for enrage that I've seen before include "Cause to see red" , "Make wild" , "Genera (anag.)" , "Incense" , "Infuriate, make very angry" .)