Builds, as a building (6)
I believe the answer is:
erects
'builds as a building' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for erects that I've seen before include "Sets up or builds." , "Raises" , "Builds, constructs" , "Puts up, builds" , "Secret (anag.)" .)