Wild ancients, for example (8)
I believe the answer is:
instance
'example' is the definition.
(I know that example can be written as instance)
'wild ancients' is the wordplay.
'wild' indicates an anagram.
'ancients' is an anagram of 'INSTANCE'.
'for' is the link.
(Other definitions for instance that I've seen before include "Example or single occurrence of something" , "'Example, illustration (8)'" , "Particular case; cite" , "Particular example" , "A case or example of something" .)