Recently married person only just ended row once hitched (8)
I believe the answer is:
newlywed
'recently married' is the definition.
(I've seen this before)
'person only just ended row once hitched' is the wordplay.
I cannot quite see how this works, but
'just' could be 'newly' (I've seen this in another clue) and 'newly' is present in the answer.
'hitched' could be 'wed' (I've seen this in another clue) and 'wed' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for newlywed that I've seen before include "Bride or groom" , "One recently married" .)