big-name

adjective

1. having a widespread public reputation as a leader in a specified field; famous: a big-name doctor; a big-name actress.
2. of, relating to, or composed of a big-name person or persons.

noun

1. a person who has a preeminent public reputation in a specified field: He’s a big name in education.

noun

1. informal
   1. a famous person
   2. (as modifier)a big-name performer