Culture evens out of this, for one (4)
I believe the answer is:
'this for one' is the definition.
(I've seen this in another clue)
'culture evens out' is the wordplay.
'evens out' indicates alternate letters (remove letters in even-numbered positions).
The alternating letters of 'culture' are 'CLUE'.
'of' is the link.
(Other definitions for clue that I've seen before include "Hint to help the puzzler" , "Pointer" , "Crossword item" , "crossword guide" , "Part of a crossword" .)