You would have to transfer the ownership of the car into your Aunties name, then let her insure the car in her name. Insurance companies require that the person who insures the car (the owner) holds a valid UK licence.

Dear sir/Madam

i would like to make an enquiry about car insuarance,
i recenty bought a car, i am from zimbabwe, i do not hava a valid liecence, but i would like to Insure my aunty as the driver so she can drive the car around and pick up the children now and then from school , is ot possible that i can insure my aunty as the driver of my vehicle,as i do not have a drivers liecence?

thank you
David Saopa