Postpone a visit (4)
I believe the answer is:
stay
I believe this clue is a double definition.
'postpone' is the first definition.
(I've seen this in another clue)
'a visit' is the second definition.
(I know that abide is a is a kind of of visit)
(Other definitions for stay that I've seen before include "Corset strut" , "Delay (execution)" , "Abide" , "Postpone" , "Remain - support" .)