Company whose name comes from the Danish for "play well” (4)
I believe the answer is:
lego
'company whose name comes from the danish for play well' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lego that I've seen before include "Toy construction set" , "Toy consisting of interlocking plastic bricks" , "Building bricks for children" , "constructed without care" , "Small bricks" .)