Moved quickly to secure vessel abandoned (7)
I believe the answer is:
spurned
'abandoned' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?
'moved quickly to secure vessel' is the wordplay.
'moved quickly' becomes 'sped' (I've seen this in another clue).
'to secure' means one lot of letters goes inside another (inserted letters are secured inside).
'vessel' becomes 'urn' (urn is a type of container).
'sped' going around 'urn' is 'SPURNED'.
Can you help me to learn more?
(Other definitions for spurned that I've seen before include "Rejected scornfully, say a suitor" , "treated with contempt?" .)