Scope; compass (6)
I believe the answer is:
extent
I believe this is a double definition.
'scope' is the first definition.
(I've seen this in another clue)
'compass' is the second definition.
(I've seen this in another clue)
(Other definitions for extent that I've seen before include "Area covered by something" , "A cake; last word of Macbeth" , "Area; size" , "Degree - amount - scope" , "Range or scope of something" .)