Judge booking on playing field (8)
I believe the answer is:
recorder
'judge' is the definition.
(historical type of judge)
'booking on playing field' is the wordplay.
'booking' becomes 'order' (I've seen this before).
'on' says to put letters next to each other.
'playing field' becomes 'rec' (recreation ground).
'order' after 'rec' is 'RECORDER'.
(Other definitions for recorder that I've seen before include "Registrar" , "found on the bench" , "Fipple-flute" , "A kind of flute or note-taker" , "Annalist" .)