In the television show Hawkeye, the main character, Clint, is completely deaf in one ear and requires a hearing aid in the other. His hearing loss was caused by the toll on his body from being a human Avenger. Later in the series he clarifies that he isn’t deaf but is hard of hearing.
In the Marvel comic books, the character has had a long and somewhat confusing history with deafness in the series. During the 1983 Hawkeye Vol. 1 #4 issue, Clint and fellow hero, Mockingbird, were forced to fight to the death after a villain invented a brainwashing sound frequency. The two heroes won the fight, but Client was left with hearing loss due to the encounter. He was given a pair of hearing aids at the end of the issue to help him hear better.