Justification for area of land that encircles building (7)
I believe the answer is:
grounds
This might be a double definition.
'justification for' is the first definition.
(I've seen this before)
'area of land that encircles building' is the second definition.
'grounds' can be an answer for 'area' (grounds is a kind of area). I am unsure of the remainder of the definition.
Can you help me to learn more?
(Other definitions for grounds that I've seen before include "Reasons" , "justification" , "Coffee sediment" , "Dregs" , "Refuses authority to fly" .)