Married one, editor (6)
I believe the answer is:
united
'married' is the definition.
('united' can be similar in meaning to 'married')
'one editor' is the wordplay.
'one' becomes 'unit' ('unit' can be a synonym of 'one').
'editor' becomes 'ed'.
'unit'+'ed'='UNITED'
(Other definitions for united that I've seen before include "joined with others" , "cooperative" , "Unified" , "... we stand, divided we fall" , "Manchester _____, current Premiership champions with..." .)