Answer: bedog

AnswerCrossword Clue
BEDOG

Hound excessively.

BEDOG

Hound.

BEDOG

Hound repeatedly.

BEDOG
Pursue closely.
BEDOG
Track stubbornly
BEDOGTail closely
BEDOGKeep on the trail of
BEDOGFollow relentlessly
BEDOGHound