Onset of trauma during long days after Yankee sailed (7)
I believe the answer is:
yachted
'sailed' is the definition.
(I've seen this before)
'onset of trauma during long days after yankee' is the wordplay.
'onset of' suggests taking the first letters.
'during' means one lot of letters goes inside another.
'long days' becomes 'ached' (I am not sure about this - if you are sure you should believe this answer much more).
'after' means one lot of letters go next to another.
'yankee' becomes 'Y' (phonetic alphabet: alpha, bravo, charlie etc.).
The first letter of 'trauma' is 't'.
't' inserted into 'ached' is 'achted'.
'achted' put after 'y' is 'YACHTED'.
Can you help me to learn more?
(Another definition for yachted that I've seen is " Sailed".)