A path abroad (4)
I believe the answer is:
away
'abroad' is the definition.
(I've seen this before)
'a path' is the wordplay.
'path' becomes 'way' (synonyms).
'a'+'way'='AWAY'
(Other definitions for away that I've seen before include "SECOND PART OF 18" , "SECOND PART OF 4 DOWN" , "Onward" , "'Apart, remote (4)'" , "football result!" .)