International candidate DClinPsy issues are probably beyond the scope of anyone on this forum, and you are better off contacting the individual DClinPsy courses that you are interested in.
Having had experience of talking to Indian, Chinese and other international students interested in clinical training in the UK, you will also need to make sure you have the money to fund this as those courses are eye wateringly expensive for international students. For instance, UCL's yearly DClinPsy fees are £32,100 for the 2024/25 year -and it is a 3 year course so you are looking at close to £100k for the entire course. Take that into consideration before investing any further time, energy or effort in this route as the NHS route where they pay for your fees and also pay you a salary is only open to those who already have the right to work here.