One drawing a tall building (5)
I believe the answer is:
tower
I believe this clue is a double definition.
'one drawing' is the first definition.
(I've seen this before)
'a tall building' is the second definition.
(I've seen this before)
(Other definitions for tower that I've seen before include "tugboat" , "Wrote (anag.)" , "tug attached to wreck, for example" , "Pisa has a leaning one" , "Minaret, for example" .)