Cricketer’s blunder (4)
I believe the answer is:
slip
I believe this clue is a double definition.
'cricketer's' is the first definition.
(position in cricket)
'blunder' is the second definition.
(slip is a kind of blunder)
(Other definitions for slip that I've seen before include "Cricket fielder - mistake" , "Glide; petticoat" , "One on cricket field" , "Drop" , "printer's proof" .)