Assemble, as a Lego tower (5)
I believe the answer is:
erect
(Other definitions for erect that I've seen before include "Standing straight" , "Upright or vertical" , "Upright; construct" , "Build, set up" , "Construct - perpendicular" .)
I believe the answer is:
erect
(Other definitions for erect that I've seen before include "Standing straight" , "Upright or vertical" , "Upright; construct" , "Build, set up" , "Construct - perpendicular" .)