Separated so, I won’t move (2,3)
I believe the answer is:
in two
'separated' is the definition.
(as in being split in two)
'i won't move' is the wordplay.
'move' is an anagram indicator.
'wont' anagrammed gives 'ntwo'.
'i'+'ntwo'='IN TWO'
'so' acts as a link.
(Other definitions for in two that I've seen before include "apart" , "Asunder" , "Completely divided" , "simply split" , "divided up thus?" .)