WandaVision Episode 4: 8 INSANE Fan Theories You Need To See
7. Clint Barton Is Jimmy Woo's Missing Person
Scott isn't the only Avenger who could potentially be Jimmy Woo's missing person, and he wasn't the only one who took a house arrest deal after breaching the Sokovia Accords in Germany. Clint Barton would have been in a very similar position to Scott after Civil War, and thus would likely be on the FBI's radar as well.
Hawkeye has wanted to retire ever since the end of Age of Ultron, and with this in mind and the fact that many dangerous people may be after him thanks to his killing spree during the five years between snaps, it wouldn't be unreasonable that he took his family into witness protection.
A quiet life in the New Jersey suburbs is what Clint was looking for, but instead he found himself trapped in Wanda's world. This could be why she chose to go to Westview in the first place. She grew to have something of a close relationship with Clint, almost like a brother-sister relationship, so she may have sought him out either for comfort, or in an ill-advised plea for help to resurrect Vision.
Could his refusal or disagreement have been what drove Wanda to break down and create the bubble around this small town? If so, Clint would have seemingly disappeared off the face of the Earth, and would still be trapped inside with her.