Pitted fruit (4)
(Other definitions for dates that I've seen before include "Is seeing" , "Trysts" , "Days in calendar" , "becomes less fresh" , "appearing on most coins" .)
(Other definitions for date that I've seen before include "one's arranged to meet" , "Year or day when an event occurred" , "Estimate age of" , "eg 1588" , "To reveal age" .)