A method of being somewhere else (4)
I believe the answer is:
away
'being somewhere else' is the definition.
(thesaurus)
'a method' is the wordplay.
'method' becomes 'way' (I've seen this before).
'a'+'way'='AWAY'
'of' acts as a link.
(Other definitions for away that I've seen before include "SECOND PART OF 4 DOWN" , "On holiday" , "travelling" , "Having started" , "Onward" .)