A Note on Clint's Communication
Hi there! Nori here with a PSA!
My AU Clint is Deaf, and his first language is ASL. He can and will voice, but for him to understand his conversation partner, they need to be facing him and enunciating clearly, and even then he'll occasionally misinterpret something. This is more common with people he's meeting for the first time, or folks with non-American accents, or if he's tired or not focusing. Lip-reading is exhausting! If you absolutely need something communicated, writing always works! Or you can find Baymax, who has a closed-captioning subroutine built in.
Clint does have the deaf "accent," but other characters might not pick up on it or class it as a speech impediment. It doesn't usually interfere with his intelligibility, but it might if he's interacting with a non-native English speaker. Or if he's being lazy, which is entirely possible.
Clint is profoundly deaf, which means he has very little to no residual hearing. You are absolutely allowed to use this in-game to startle or confuse him, but fair warning- he does have VERY good eyesight and killer combat reflexes. Startle the Deaf guy at your own peril.