'Wrecked boat at sea' framed by artist retrospectively (9)
I believe the answer is:
sabotaged
'wrecked' is the definition.
(sabotage can mean to wreck or ruin)
'boat at sea framed by artist retrospectively' is the wordplay.
'at sea' is an anagram indicator.
'framed by' is an insertion indicator.
'artist' becomes 'degas' (I've seen this in other clues).
'retrospectively' says the letters should be written backwards.
'degas' backwards is 'saged'.
'boat' with letters rearranged gives 'abot'.
'abot' put within 'saged' is 'SABOTAGED'.
(Other definitions for sabotaged that I've seen before include "Incapacitated" , "crippled" , "Damaged" , "Aged boats (anag)" , "Deliberately destroyed (equipment, plans, etc)" .)