Angry snake runs from pig (4,4)
I believe the answer is:
wild boar
'pig' is the definition.
(I have seen 'Feral pig ' mean 'wild boar' so perhaps 'pig' could also mean 'wild boar')
'angry snake runs' is the wordplay.
'angry' becomes 'wild' ('wild' can be a synonym of 'angry').
'snake' becomes 'boa' (boa is a kind of snake).
'runs' becomes 'r' (cricket abbreviation).
'wild'+'boa'+'r'='WILD BOAR'
'from' acts as a link.
(Other definitions for wild boar that I've seen before include "Non-domesticated pig" , "Feral pig" , "strong meat" , "Game" , "Untamed pig" .)