Turn over following mistake (4)
I believe the answer is:
goof
'mistake' is the definition.
(I've seen this in another clue)
'turn over following' is the wordplay.
'turn' becomes 'go' (a person's move in a board game).
'over' becomes 'o' (cricket abbreviation).
'following' becomes 'f' (used when citing page numbers etc).
'go'+'o'+'f'='GOOF'
(Other definitions for goof that I've seen before include "Foolish mistake" , "Blunder, mistake (slang)" , "(Make a) silly mistake" , "boob" , "In slang, bungle or blunder" .)