2019 acquirer of the BrickLink fan site (4)

I believe the answer is:

lego

(Other definitions for lego that I've seen before include "Toy building-bricks" , "Toy consisting of interlocking plastic bricks" , "Toy building blocks" , "Building bricks for children" , "Child's plastic construction set" .)

I've seen this clue in the Newsday.

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