Stagger back from park over field on a regular basis (6)
I believe the answer is:
recoil
'stagger back' is the definition.
(I've seen this before)
'park over field on a regular basis' is the wordplay.
'park' becomes 'rec' (short for recreation ground).
'over' becomes 'o' (cricket abbreviation).
'on a regular basis' indicates alternate letters.
The alternate letters of 'field' are 'il'.
'rec'+'o'+'il'='RECOIL'
'from' is the link.
(Other definitions for recoil that I've seen before include "Spring back suddenly as gun may when fired" , "Flinch in horror" , "backlash" , "Flinch, starts back" , "Flinch, shrink back in fear" .)