Typically, one circles a grave uneasily (2,7)
I believe the answer is:
on average
'typically' is the definition.
(I've seen this before)
'one circles a grave uneasily' is the wordplay.
'circles' is an insertion indicator.
'uneasily' indicates anagramming the letters.
'a'+'grave'='agrave'
'agrave' is an anagram of 'averag'.
'one' enclosing 'averag' is 'ON AVERAGE'.
(Other definitions for on average that I've seen before include "Usually" , "Generally" , "typically speaking" .)