John Grubb
As with pubs the name should be as it appears "over the door." From the company website it is headline named as "Tops Taunton Musgrove" but then goes on to refer to itself as "Tops Musgrove." The headline name will suffice, I think, until a mapper passing the place observes what is on the actual nameboard (which I've a vague memory just says "Tops Day Nurseries" under their logo).

Additionally, this facility was tagged with amenity=childcare. This tagging proposal was rejected in favour of amenity=social_facility and social_facility:for=child according to OSM Wki so I've changed that, too, and added some additional detail such as URL, 'phone no., etc..