However the knock-on effect is that now all the fields are wrapped in <p></p> tags by the wpautop filter. Is there any way I can disable this wpautop filter on the Toolset fields display?
Disable 'autop' filter, by putting following code in your theme's functions.php:
remove_filter('the_content', 'wpautop');
Please note that:
This will disable autop site-wide. You can encapsulate it in an appropriate event/action/hook, to disable at particular time. Please see View Filters API at https://toolset.com/documentation/user-guides/views-filters/ for a suitable action.