Tracks on far side of pitch remain (5)
I believe the answer is:
tarry
'remain' is the definition.
(I've seen this in another clue)
'tracks on far side of pitch' is the wordplay.
'tracks' becomes 'RY' (abbreviation for railway).
'on far side of' says to put letters next to each other.
'pitch' becomes 'tar' (synonyms).
'ry' after 'tar' is 'TARRY'.
(Other definitions for tarry that I've seen before include "Famous novel by Patrick Kavanagh - '. . . . . Flynn'" , "Hang around" , "'Delay, linger (5)'" , "Delay leaving" , "perhaps not to split" .)