whisperer
n. countable B2 Upper Intermediate US //ˈwɪspəˌɹɝ// UK //wˈɪspəɹɐ// whis·per·er
n. someone who can calm or control an animal, especially a wild one, using quiet words or gentle actions. It can also describe a person who can keep a secret or manage difficult people.
n. a person who can pacify or manage an animal, typically a wild one, through quiet speech or gentle handling. By extension, it refers to someone who can manage difficult situations or keep secrets effectively.
The horse whisperer calmed the frightened pony in seconds.
The new manager acted as a whisperer for the team, resolving the conflict without any public drama.
From whisper + -er. The extended senses were popularized by the film The Horse Whisperer (1998).