Savage wolf upset geese, for example (8)
I believe the answer is:
wildfowl
'geese for example' is the definition.
'savage wolf upset' is the wordplay.
'savage' becomes 'wild' ('wild' can be similar in meaning to 'savage').
'upset' is an anagram indicator.
'wolf' anagrammed gives 'fowl'.
'wild'+'fowl'='WILDFOWL'
(Other definitions for wildfowl that I've seen before include "sport for guns?" , "Game birds" , "Grouse and pheasant, for instance" , "Ducks etc" .)