Would any navy use a cruiser-carrier as a merchant raider?
Short answerProbably not; likely owners would keep carriers concentrated or use them to support cruiser sweeps rather than raid alone.
NotesJapan cannot afford to disperse scarce carrier strength into independent commerce-raiding missions. Britain and the United States also lack a strong doctrinal reason to send a cruiser-carrier alone against merchant traffic. British light carriers might instead support cruisers that sweep enemy shipping while remaining part of a broader regional force. The concept therefore fails because the likely owners value concentration, fleet support, or trade security more than an isolated raiding experiment.