How does one Render full html field from a field_target_entity ?

I have a file entity, with extra fields.

I am able to print out the plain text value of the field_source_full field with:

{{ content.field_slide_images|field_target_entity.field_source_full.value }}

But this field is full html and we'd hope to be able to print out the full html rendered content - not the "plain text" version.

Is this possible with some sort of render or format option?