godan verb (-ru), intransitive verb
chase closely; be hot on someone's heels; cling to someone in pursuit
Describes pursuing someone persistently, often with a sense of clinging or not letting them get away. Can be used literally for chasing or figuratively for clinging to someone emotionally.
子供が母親に追いすがって泣いた。
The child clung to his mother, crying.
警察は容疑者に追いすがっ
The police were hot on the suspect's heels.