Soldier married in Macondo originally (8)
I believe the answer is:
commando
'soldier' is the definition.
(I've seen this before)
'married in macondo originally' is the wordplay.
'married' becomes 'm'.
'in' means one lot of letters goes inside another.
'originally' indicates an anagram.
'macondo' is an anagram of 'comando'.
'm' put inside 'comando' is 'COMMANDO'.
(Other definitions for commando that I've seen before include "One soldier" , "Military unit specially trained for raids and assaults" , "specially-trained soldier" , "Army unit" , "Military raider" .)