Answer: pursue

AnswerCrossword Clue
PURSUE

Try to catch

PURSUE

Chase

PURSUE

Go after

PURSUE
Run after
PURSUE
Follow up on
PURSUEChase.
PURSUEFollow up.
PURSUEHunt.
PURSUEStrive for
PURSUEDog
PURSUERun down
PURSUEFollow
PURSUEChase after
PURSUEPlay catch-up
PURSUEFollow doggedly