Satisfied dates were wrong (5)
I believe the answer is:
sated
'satisfied' is the definition.
(I've seen this in another clue)
'dates were wrong' is the wordplay.
'were wrong' indicates anagramming the letters (I've seen 'is wrong' mean this).
'dates' is an anagram of 'SATED'.
(Other definitions for sated that I've seen before include "Fully satisfied" , "Indulged to the full" , "given more than enough" , "with no empty spaces?" , "Filled to satisfaction" .)