This, for example, evens out culture (4)
I believe the answer is:
clue
'this' is the definition.
(the clue referring to itself!)
'evens out culture' is the wordplay.
'evens out' means one should take alternating letters (remove letters in even-numbered positions).
The alternate letters of 'culture' are 'CLUE'.
'for example' acts as a link.
(Other definitions for clue that I've seen before include "It helps towards the solution" , "Aid to solving" , "one of 28 here" , "Hint towards solution" , "Luce (anag.)" .)