Divorced adult upset date, crossing blurred line (9)
I believe the answer is:
alienated
'divorced' is the definition.
(I've seen this before)
'adult upset date crossing blurred line' is the wordplay.
'adult' becomes 'a' (abbreviation).
'upset' indicates an anagram.
'crossing' is an insertion indicator.
'blurred' indicates an anagram (I've seen this in other clues).
'date' anagrammed gives 'ated'.
'line' with letters rearranged gives 'lien'.
'ated' going around 'lien' is 'lienated'.
'a'+'lienated'='ALIENATED'
(Other definitions for alienated that I've seen before include "put off" , "Estranged" , "Date Liane (anag.)" , "divorced" , "disaffected" .)