Cricketer's garment (4)
I believe the answer is:
slip
This clue is a double definition.
'cricketer's' is the first definition.
(position in cricket)
'garment' is the second definition.
(slip is a kind of garment)
(Other definitions for slip that I've seen before include "Slight mistake" , "Underwear" , "Gaffe" , "Error; watered clay" , "have an accident" .)