Lamented disrespectful daughter moving east (4)
I believe the answer is:
rued
'lamented' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
(Other definitions for rued that I've seen before include "'Regretted, repented (4)'" , "Bitterly regretted" , "Was contrite about" , "was remorseful" , "Was sorry" .)