England, to Caesar (6)
I believe the answer is:
anglia
'england to caesar' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for anglia that I've seen before include "See 10" , "East -, former Saxon kingdom" , "Old Ford and eastern England region" , "Latin name for England" , "East - includes Norfolk, Suffolk" .)